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Title: Noninvasive Blood-Glucose Monitoring: A Microwave-based Biosensor Development.
Creator: Shankar, Poornima, Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This research refers to a proof-of-concept study concerning the development of a noninvasive blood-glucose monitoring system. The biosensor being considered is a microwave-based transducer (that can be rendered compatible for ISM band of 2450 MHz and hence Zigbee™ and/or BluetoothTM compliant). The goal of this study is tailored to develop eventually a unit for home-based healthcare and/or personalized wellness monitoring of diabetic patients. This pilot effort is expected to culminate in...
Show moreThis research refers to a proof-of-concept study concerning the development of a noninvasive blood-glucose monitoring system. The biosensor being considered is a microwave-based transducer (that can be rendered compatible for ISM band of 2450 MHz and hence Zigbee™ and/or BluetoothTM compliant). The goal of this study is tailored to develop eventually a unit for home-based healthcare and/or personalized wellness monitoring of diabetic patients. This pilot effort is expected to culminate in future in a wireless hyper/hypoglycemic risk-alert system and possible automatic insulin infusion pump activation efforts. The thesis addressed thereof provides details on the fundamentals of sensing glucose content noninvasively across a finger. The underlying principle of biosensing refers to detecting the change in the dielectric property of blood with differential changes in the glucose influx in the finger by sensing microwave (such as 2450 MHz) absorption and/or reflection so as to assay the glucose content of interest. Preliminary experimental and theoretical results are presented and discussed.
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Date Issued: 2008
PURL: http://purl.flvc.org/fau/fd/FA00012552
Subject Headings: Bioelectrochemistry--Research, Blood sugar monitoring, Diabetes--Risk factors--Identification, Biosensors--Materials, Microwave transmission lines, Microwave integrated circuits
Format: Document (PDF)

Title: CMOS VLSI Design of a Bluetooth™ Receiver Front-End: Performance Evaluation via ADS™-Based Simulations.
Creator: Talbot, Bethany J., Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research addressed and deliberated in this thesis refers to CMOS VLSI design approach of a Bluetooth™ receiver front-end. The performance outcome o f the design is verified with ADS™ RF simulation tool. Essentially the thesis offers an outline on the Bluetooth™ technology and its RF front-end component requirements. The relevant specifications of the designed front-end blocks are identified and are in concurrence with CMOS technology based topologies. For each block identified, both...
Show moreThe research addressed and deliberated in this thesis refers to CMOS VLSI design approach of a Bluetooth™ receiver front-end. The performance outcome o f the design is verified with ADS™ RF simulation tool. Essentially the thesis offers an outline on the Bluetooth™ technology and its RF front-end component requirements. The relevant specifications of the designed front-end blocks are identified and are in concurrence with CMOS technology based topologies. For each block identified, both circuit parameters and device characteristics are chosen as per available design formulations and empirical results in open literature. Specifically, the topology sections designed include antenna input matching, transmit/receive switch, necessary filters, low noise amplifier, mixer and phase lock loop units. The numerical TM, (designed) circuit parameters are duly addressed in appropriate ADS simulation tools and performance evaluations are conducted. Observed results including any deviations are identified and reported. The thesis concludes with a summary and indicates direction for future work.
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Date Issued: 2007
PURL: http://purl.flvc.org/fau/fd/FA00012559
Subject Headings: Integrated circuits--Very large scale integration--Design and construction, Metal oxide semiconductors, Complementary, Bluetooth technology, Network performance (Telecommunication)
Format: Document (PDF)

Title: Security Enhancement in Plastic Cards Using an Invisible "Watermark" Emulated by an Embedded set of Electromagnetic Material: An Overlay Strategy to Prevailing Security Features.
Creator: Lim, Swee Hock, Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This thesis addresses a passive, economical strategy towards enhancing the security feature of conventional plastic cards by embedding a set of electromagnetic (EM) material that emulates an invisible "watermarking". It is an overlay strategy to prevailing security measures. Proposed method consists of incorporating (embedding) a set of metallic (foil-like) sheet of high-mu material or high-conductivity metal, or a conducting-fiber interwoven fabric. The test card when exposed to a suitable...
Show moreThis thesis addresses a passive, economical strategy towards enhancing the security feature of conventional plastic cards by embedding a set of electromagnetic (EM) material that emulates an invisible "watermarking". It is an overlay strategy to prevailing security measures. Proposed method consists of incorporating (embedding) a set of metallic (foil-like) sheet of high-mu material or high-conductivity metal, or a conducting-fiber interwoven fabric. The test card when exposed to a suitable excitation of high frequency EM excitation (with or without superimposing a static magnetic field), the plastic part yields a distinct path-reluctance to the EM energy when compared to the embedded EM material section. Sensing the resulting EM reaction with an appropriate circuit, delivers an output signal depicting the presence of the embedded "watermarking" and any encoded signature in it. The underlying concept is theoretically analyzed, relevant card-reading methods are suggested and prototype (experimental) results are presented.
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Date Issued: 2007
PURL: http://purl.flvc.org/fau/fd/FA00012534
Subject Headings: Crime prevention, Multimedia systems, Information security applications, Digital watermarking
Format: Document (PDF)

Title: Studies on performance aspects of smart wireless devices and related network services.
Creator: Noori, Aziz Ulhaq, Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This study is a focused effort on elucidating the performance aspects of modern, handheld wireless devices and associated mobile network services. Specifically addressed thereof are: (i) Assessing the performance details on certain hardware sections of smart handheld devices and (ii) determining the performance profile of market penetration considerations vis-à-vis provisioning mobile networks. To meet the scope of this research, the projected efforts are exercised in compiling relevant...
Show moreThis study is a focused effort on elucidating the performance aspects of modern, handheld wireless devices and associated mobile network services. Specifically addressed thereof are: (i) Assessing the performance details on certain hardware sections of smart handheld devices and (ii) determining the performance profile of market penetration considerations vis-à-vis provisioning mobile networks. To meet the scope of this research, the projected efforts are exercised in compiling relevant literature and deciding the said hardware and technoeconomic performance issues. Hence, written in two parts, Part A is devoted to hardware performance details of smart, handheld devices relevant to (a) delay issues in PCB layouts; (b) crosstalk problems at the baseband level (audio/multimedia) using EMI concepts and (c) ascertaining non-catastrophic EMP/EMI effects at the RF-sections so as to implement protection strategies via compensating networks. Part B is concerned with the technoeconomics of wireless networks in supporting mobile (handheld devices). Correspondingly, two market related considerations versus service performance details are considered. The first one refers to deducing a relative performance index that includes technology (mobile speed) details plus economics profiles of the users in the service area. The second task refers to elucidating a performance index of such services in terms of hedonic pricing heuristics. The theoretical aspects of the test studies as above are supplemented with experimental and/or simulation details as appropriate. Hence, the efficacy of performance details are discussed in real-world applications. Lastly, possible research items for future studies are identified as open-questions.
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Date Issued: 2015
PURL: http://purl.flvc.org/fau/fd/FA00004395, http://purl.flvc.org/fau/fd/FA00004395
Subject Headings: Mobile communication systems -- Standards, Network performance (Telecommunications), Smartphones, Technoeconomcs, Wireless communication systems -- Technological innovations
Format: Document (PDF)

Title: Exploring the electromagnetics of millimeter-wave through terahertz spectrum: de novo studies vis-à-vis materials science, biomedical applications and wireless communication.
Creator: Sharma, Bharti, Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The present research is a targeted endeavor to study the underlying characteristics and novel applications of millimeter (mm) wave through terahertz (THz) spectrum of electromagnetic (EM) energy. Focused thereof are the following specific tasks broadly considered pertinent to the said EM spectral range: (i) To elucidate the material characteristics vis-à-vis the interaction with EM energy at the test frequencies; (ii) to identify biomedical applications based on the material characteristics...
Show moreThe present research is a targeted endeavor to study the underlying characteristics and novel applications of millimeter (mm) wave through terahertz (THz) spectrum of electromagnetic (EM) energy. Focused thereof are the following specific tasks broadly considered pertinent to the said EM spectral range: (i) To elucidate the material characteristics vis-à-vis the interaction with EM energy at the test frequencies; (ii) to identify biomedical applications based on the material characteristics studied and applied to biomedia; and (iii) to model the wireless communication channels supporting EM waves at the test frequency bands of interest. Commensurate with the scope as above, the objectives of the research are as follows:
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004330, http://purl.flvc.org/fau/fd/FA00004330
Subject Headings: Electromagnetic waves -- Scattering, Pattern recognition systems, Scattering (Physics), Terahertz technology, Wireless communication systems
Format: Document (PDF)

Title: Cytogenetic of chromosomal synteny evaluation: bioinformatic applications towards screening of chromosomal aberrations/ genetic disorder.
Creator: Sharma, Sandhya, Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research efforts refer to tracking homologus loci in the chromosomes of a pair of a species. The purpose is to infer the extent of maximum syntenic correlation when an exhaustive set of orthologs of the species are searched. Relevant bioinformatic analyses use comparative mapping of conserved synteny via Oxford grid. In medical diagnostic efforts, deducing such synteny correlation can help screening chromosomal aberration in genetic disorder pathology. Objectively, the present study...
Show moreThe research efforts refer to tracking homologus loci in the chromosomes of a pair of a species. The purpose is to infer the extent of maximum syntenic correlation when an exhaustive set of orthologs of the species are searched. Relevant bioinformatic analyses use comparative mapping of conserved synteny via Oxford grid. In medical diagnostic efforts, deducing such synteny correlation can help screening chromosomal aberration in genetic disorder pathology. Objectively, the present study addresses: (i) Cytogenetic framework of syntenic correlation and, (ii) applying information-theoretics to determine entropy-dictated synteny across an exhaustive set of orthologs of the test pairs of species.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004331, http://purl.flvc.org/fau/fd/FA00004331
Subject Headings: Cytogenetics, Genetic screening, Human chromosome abnormalities, Medical genetics, Molecular biology, Molecular diagnosis, Molecular genetics, Mutation (Biology)
Format: Document (PDF)

Title: Application of artificial neural networks to deduce robust forecast performance in technoeconomic contexts.
Creator: Dabbas, Mohammad A., Neelakanta, Perambur S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The focus of this research is concerned with performing forecasting in technoeconomic contexts using a set of certain novel artificial neural networks (ANNs). Relevant efforts in general, entail the task of quantitatively estimating the details about the likelihood of future events (or unknown outcomes/effects) based on past and current information on the observed events (or known causes). Commensurate with the scope and objectives of the research, the specific topics addressed are as follows...
Show moreThe focus of this research is concerned with performing forecasting in technoeconomic contexts using a set of certain novel artificial neural networks (ANNs). Relevant efforts in general, entail the task of quantitatively estimating the details about the likelihood of future events (or unknown outcomes/effects) based on past and current information on the observed events (or known causes). Commensurate with the scope and objectives of the research, the specific topics addressed are as follows: A review on various methods adopted in technoeconomic forecasting and identified are econometric projections that can be used for forecasting via artificial neural network (ANN)-based simulations Developing and testing a compatible version of ANN designed to support a dynamic sigmoidal (squashing) function that morphs to the stochastical trends of the ANN input. As such, the network architecture gets pruned for reduced complexity across the span of iterative training schedule leading to the realization of a constructive artificial neural-network (CANN). Formulating a training schedule on an ANN with sparsely-sampled data via sparsity removal with cardinality enhancement procedure (through Nyquist sampling) and invoking statistical bootstrapping technique of resampling applied on the cardinality-improved subset so as to obtain an enhanced number of pseudoreplicates required as an adequate ensemble for robust training of the test ANN: The training and prediction exercises on the test ANN corresponds to optimally elucidating output predictions in the context of the technoeconomics framework of the power generation considered Prescribing a cone-of-error to alleviate over- or under-predictions toward prudently interpreting the results obtained; and, squeezing the cone-of-error to get a final cone-of-forecast rendering the forecast estimation/inference to be more precise Designing an ANN-based fuzzy inference engine (FIE) to ascertain the ex ante forecast details based on sparse sets of ex post data gathered in technoeconomic contexts - Involved thereof a novel method of .fusing fuzzy considerations and data sparsity.Lastly, summarizing the results with essential conclusions and identifying possible research items for future efforts identified as open-questions.
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Date Issued: 2014
PURL: http://purl.flvc.org/fau/fd/FA00004097, http://purl.flvc.org/fau/fd/FA00004097
Subject Headings: Artificial intelligence, Fuzzy systems, Long waves (Economics), Multisensor data fusion, Neural networks (Computer science) -- Mathematical models
Format: Document (PDF)

Title: Maximum entropy-based optimization of artificial neural networks: An application to ATM telecommunication parameter predictions.
Creator: Sundaram, Karthik., Florida Atlantic University, De Groff, Dolores F., Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This thesis addresses studies on cost-functions developed on the basis of maximum entropy principle, for applications in artificial neural network (ANN) optimization endeavors. The maximization of entropy refers to maximizing Shannon information pertinent to the difference in the output and the teacher value of an ANN. Apart from the Shannon format of the negative entropy formulation a set of Csiszar family functions are also considered. The error-measures obtained, via these maximum entropy...
Show moreThis thesis addresses studies on cost-functions developed on the basis of maximum entropy principle, for applications in artificial neural network (ANN) optimization endeavors. The maximization of entropy refers to maximizing Shannon information pertinent to the difference in the output and the teacher value of an ANN. Apart from the Shannon format of the negative entropy formulation a set of Csiszar family functions are also considered. The error-measures obtained, via these maximum entropy formulations are adopted as cost-functions in the training and prediction schedules of a test perceptron. A comparative study is done on the performance of these cost-functions in facilitating the test network towards optimization so as to predict a standard teacher function sin (.). The study is also extended to predict a parameter (such as cell delay variation) in a practical ATM telecommunication system. Concluding remarks and scope for an extended study are also indicated.
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Date Issued: 1999
PURL: http://purl.flvc.org/fcla/dt/15660
Subject Headings: Neural network (Computer science), Asynchronous transfer mode
Format: Document (PDF)

Title: Analysis of multiplexed ATM traffics: A large-deviation theoretic approach.
Creator: Palaniappa, Malathi., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: ATM multiplexing, (which is essentially a statistical multiplexing process with priority constraints) leads to a departure pattern of cells on the trunk (or bearer) line, characterized by the profiles of incoming traffics at the multiplexer. Such profiles are decided by the bit-rate variations and workload fluctuations of the associated sources, namely voice, data and video of the cells. Bit rate statistics of incoming traffic with priority constraints decide the clustered and/or non...
Show moreATM multiplexing, (which is essentially a statistical multiplexing process with priority constraints) leads to a departure pattern of cells on the trunk (or bearer) line, characterized by the profiles of incoming traffics at the multiplexer. Such profiles are decided by the bit-rate variations and workload fluctuations of the associated sources, namely voice, data and video of the cells. Bit rate statistics of incoming traffic with priority constraints decide the clustered and/or non-clustered epochs of cells on the multiplexed fine. If the incoming traffic is delay-sensitive, it gets the priority in the multiplexing strategy and the associated cells inbiting no clusters; whereas, the non-isochronous traffics (facing low priority flow service) induce stagnation in the queue and pose eventually a clustered structure of cells on the trunk line. Workload fluctuation is largely application-dependent. The corresponding teletraffic statistics would also show deviations in the performance from the mean-field regime. In essence, the cell-stream departing from ATM multiplexer would exhibit statistics of deviations. In the present study, the associated delay parameter is considered and modeled under constant and variable bit rate conditions for fluctuating workloads. Mean-field theory is applied in modeling constant bit rate traffics. For variable and bursty rate transmissions, it is shown that the delay is governed by a non-homogeneous compound Poisson process. Relevant statistical bounds are established via large-deviation theory. Determination of the bounds of ATM cell-delay variations is important in developing call admission control algorithms.
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Date Issued: 1999
PURL: http://purl.flvc.org/fcla/dt/15737
Subject Headings: Asynchronous transfer mode, Telecommunication--Traffic, Multiplexing
Format: Document (PDF)

Title: Estimation of information-theoretics-based delay-bounds in ATM networks.
Creator: Wei, Liqun., Florida Atlantic University, Hsu, Sam, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This thesis addresses a method of deducing the statistical upper and lower bounds associated with the cell-transfer delay variations (CDVs) encountered by the cells transmitted in the asynchronous transfer mode (ATM) networks due to cell losses. This study focuses on: (1) Estimating CDV arising from multiplexing/switching for both constant bit rate and variable bit rate services via simulations. (2) Deducing an information-theoretics based new technique to get an insight of the combined BER...
Show moreThis thesis addresses a method of deducing the statistical upper and lower bounds associated with the cell-transfer delay variations (CDVs) encountered by the cells transmitted in the asynchronous transfer mode (ATM) networks due to cell losses. This study focuses on: (1) Estimating CDV arising from multiplexing/switching for both constant bit rate and variable bit rate services via simulations. (2) Deducing an information-theoretics based new technique to get an insight of the combined BER-induced and multiplexing/switching-induced CDVs in ATM networks. Algorithms on the CDV statistics are derived and the lower and upper bounds of the statistics are obtained via simulations in respect of CBR and VBR traffics. These bounds bounds are useful in the cell-admission control (CAC) strategies adapted in ATM transmissions. Inferential remarks indicating the effects of traffic parameters (such as bandwidth, burstiness etc.) on the values of the statistical bounds are presented, and scope for further work is indicated.
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Date Issued: 1997
PURL: http://purl.flvc.org/fcla/dt/15444
Subject Headings: Asynchronous transfer mode, Telecommunication, Computer networks, Broadband communication systems
Format: Document (PDF)

Title: Application of stochastical mixture theory in the design of electromagnetic composite materials.
Creator: Katragadda, Subramaniam., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This Thesis is concerned with the application of stochastical mixture considerations in the analytical modeling of certain classes of electromagnetic composites. It refers to the elucidation of the electromagnetic properties of such composite materials when used in engineering applications. The analytical studies refer to the extension of the existing stochastical mixture permittivity formulations to characterize magnetic mixture materials as well as chiralic mixture media. In both cases the...
Show moreThis Thesis is concerned with the application of stochastical mixture considerations in the analytical modeling of certain classes of electromagnetic composites. It refers to the elucidation of the electromagnetic properties of such composite materials when used in engineering applications. The analytical studies refer to the extension of the existing stochastical mixture permittivity formulations to characterize magnetic mixture materials as well as chiralic mixture media. In both cases the mixture medium is presumed to consist of a host (receptacle) and dispersed particulates (inclusions). The effects of particulate shape in both chiralic and achiralic systems are also considered. Further, the concept of particulate polarization in deciding the permittivity and/or permeability characteristics of orderly-textured mixture media is addressed so as to determine the electromagnetic properties of such orderly-textured media. Application potentials of the present studies in the design of electromagnetic composites are indicated and the scope for the future research is portrayed.
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Date Issued: 1992
PURL: http://purl.flvc.org/fcla/dt/14807
Subject Headings: Composite materials, Stochastic processes
Format: Document (PDF)

Title: Analytical and experimental evaluation of the magnetic fields induced by buried and overhead high-voltage power-lines.
Creator: Lordan, Richard Joseph., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This thesis is concerned with the measurement of magnetic field components induced above the earth's surface by three classes of high-voltage power transmission lines supplemented by algorithmic formulations: The first system refers to three-phase lines housed in a plastic (PVC) conduit, buried directly in the soil or encased in a concrete duct. The second category refers to a similar buried system, but encased in an iron/steel pipe. The third transmission line is an overhead three-phase...
Show moreThis thesis is concerned with the measurement of magnetic field components induced above the earth's surface by three classes of high-voltage power transmission lines supplemented by algorithmic formulations: The first system refers to three-phase lines housed in a plastic (PVC) conduit, buried directly in the soil or encased in a concrete duct. The second category refers to a similar buried system, but encased in an iron/steel pipe. The third transmission line is an overhead three-phase system. Using boundary-value approach, approximate (closed-form) expressions are obtained for the magnetic field above the earth's surface caused by each of the systems indicated. Calculated results are compared with experimental data compiled from field experiments.
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Date Issued: 1990
PURL: http://purl.flvc.org/fcla/dt/14660
Subject Headings: Electric lines--Environmental aspects, Electromagnetic fields--Measurement, Electric fields--Measurement
Format: Document (PDF)

Title: IPTV on copper-lines converging into "all-optical" trunk transport: A next-generation local-loop solution.
Creator: Perez, Angela S., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: A promising next-generation version of service that could be availed from local exchange carriers (LECs) refers to streaming Internet protocol based television (IPTV) programs into subscriber premises via traditional copper pairs. The present study addresses provisioning economically-budgeted and optimally-engineered bit rates (EBRs) in implementing IPTV technology in the local-loop via copper-pairs using the so-called (ADSL2/ADSL2+) technology (with high-speed/large bandwidth considerations...
Show moreA promising next-generation version of service that could be availed from local exchange carriers (LECs) refers to streaming Internet protocol based television (IPTV) programs into subscriber premises via traditional copper pairs. The present study addresses provisioning economically-budgeted and optimally-engineered bit rates (EBRs) in implementing IPTV technology in the local-loop via copper-pairs using the so-called (ADSL2/ADSL2+) technology (with high-speed/large bandwidth considerations plus copper-bonding for bandwidth sharing capabilities). Also studied is the way to extend the backhaul transport of IPTV on copper-lines (plus any other local-loop transmissions that may co-exist) onto an "all-optical" trunk of the inter-office facilities (IOFs) in the edge/core network cloud of the telcos. A model of a core network topology is analyzed for traffic considerations so as to decide on blocking probability at a specified egress node under different conditions of burstiness. The problems posed are analyzed via computations/simulations on Matlab(TM) (v6.5). Inferential remarks are gathered, conclusions are drawn and open-questions yet to be researched are indicated.
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Date Issued: 2006
PURL: http://purl.flvc.org/fcla/dt/13395
Subject Headings: Telecommunication wiring, Data transmission systems, TCP/IP (Computer network protocol)
Format: Document (PDF)

Title: A study on glucose metabolism: Computer simulation and modeling.
Creator: Leesirikul, Meta., Florida Atlantic University, Neelakanta, Perambur S., Roth, Zvi S., Morgera, Salvatore D., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: Sorensen's model of glucose metabolism and regulation is reconstructed using SimulinkRTM. Most of the existing glucose metabolism models consist of several mass balance equations that interact with each others. Graphical format used by SimulinkRTM provides a visualized perspective of such relations so that it is easier to modify the model on ad hoc basis. Type-I and Type-II diabetes with relevant clinical details are simulated. Further, a control strategy is introduced in order to simulate...
Show moreSorensen's model of glucose metabolism and regulation is reconstructed using SimulinkRTM. Most of the existing glucose metabolism models consist of several mass balance equations that interact with each others. Graphical format used by SimulinkRTM provides a visualized perspective of such relations so that it is easier to modify the model on ad hoc basis. Type-I and Type-II diabetes with relevant clinical details are simulated. Further, a control strategy is introduced in order to simulate the control of exogenous insulin pump. Simulated results are consistent with available clinical data. Living systems in general, exhibit both stochastical and deterministic characteristics. Activities such as glucose metabolism traditionally modeled do not include stochastical properties, nor that they are viewed in the large framework of complex system with explicit interaction details. Currently, a complexity system model is developed to describe the glucose metabolism related activities. The simulation results obtained thereof illustrate the bounding domain of variations in some clinically observed details.
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Date Issued: 2005
PURL: http://purl.flvc.org/fcla/dt/13254
Subject Headings: Glucose--Metabolism, Computer simulation, Diabetes--Metabolism, Computer modeling
Format: Document (PDF)

Title: Binary representation of DNA sequences towards developing useful algorithms in bioinformatic data-mining.
Creator: Pandya, Shivani., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: This thesis refers to a research addressing the use of binary representation of the DNA for the purpose of developing useful algorithms for Bioinformatics. Pertinent studies address the use of a binary form of the DNA base chemicals in information-theoretic base so as to identify symmetry between DNA and complementary DNA. This study also refers to "fuzzy" (codon-noncodon) considerations in delinating codon and noncodon regimes in a DNA sequences. The research envisaged further includes a...
Show moreThis thesis refers to a research addressing the use of binary representation of the DNA for the purpose of developing useful algorithms for Bioinformatics. Pertinent studies address the use of a binary form of the DNA base chemicals in information-theoretic base so as to identify symmetry between DNA and complementary DNA. This study also refers to "fuzzy" (codon-noncodon) considerations in delinating codon and noncodon regimes in a DNA sequences. The research envisaged further includes a comparative analysis of the test results on the aforesaid efforts using different statistical metrics such as Hamming distance Kullback-Leibler measure etc. the observed details supports the symmetry aspect between DNA and CDNA strands. It also demonstrates capability of identifying non-codon regions in DNA even under diffused (overlapped) fuzzy states.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/13089
Subject Headings: Bioinformatics, Data mining, Nucleotide sequence--Databases, Computer algorithms
Format: Document (PDF)

Title: Statistical bounds on handoff probabilities under different fading channel models of mobile communication.
Creator: Laupattarakasem, Pet., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research envisaged and reported in this thesis refers to finding comprehensive algorithms to determine the handoff probabilities of new and handoff calls encountered in mobile communications. The traditional expressions for these probabilities that are reported in the literature, are deduced only on the basis of call arrival statistics applied to RF links between base station (BS) and the mobile unit (MU). However, such radio links inevitably suffer from fading. These channels are...
Show moreThe research envisaged and reported in this thesis refers to finding comprehensive algorithms to determine the handoff probabilities of new and handoff calls encountered in mobile communications. The traditional expressions for these probabilities that are reported in the literature, are deduced only on the basis of call arrival statistics applied to RF links between base station (BS) and the mobile unit (MU). However, such radio links inevitably suffer from fading. These channels are normally modeled by appropriate probability density functions (pdfs) of the faded signal envelope. Rayleigh, Rician and Nakagami-m distributions are popularly considered in depicting such fading channel characteristics. The traditional (queueing-theoretic) based estimation of handoff probabilities does not account for the hysteresis-specific handoff statistics in the relevant fading channels. This is in contrary to the reality, inasmuch as fading is an inherent part of RF channels in mobile communications. The present study offers a tractable method of combining queuing-theoretic (call arrival) statistics and the hysteresis-crossing statistics of a RSS metric so as to obtain proper expressions for new and handoff call handoff probabilities. The (upper and lower) bound specified spread of the handoff probabilities indicates that care should be exercised in resource allocation efforts with a margin. To the best of the knowledge of the author, this research exercise is new and has not been reported elsewhere in open literature.
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Date Issued: 2003
PURL: http://purl.flvc.org/fcla/dt/13006
Subject Headings: Oceanographic submersibles, Tactile sensors, Robots--Control systems
Format: Document (PDF)

Title: Studies on modern telecommunications planning: Technoeconomical considerations and environmental issues.
Creator: Baeza, Daniel Michael., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research addressed and presented in this dissertation can be placed within the broad scope of telecommunications technoeconomics. The relevant efforts include the subject-matter of identifying the issues posed by emerging technologies, related revenue considerations and environmental issues in modern telecommunications practice specific to service providers' perspectives. The topic-wise problems studied and analyzed are as follows: (1) A comprehensive portrayal of managerial concerns and...
Show moreThe research addressed and presented in this dissertation can be placed within the broad scope of telecommunications technoeconomics. The relevant efforts include the subject-matter of identifying the issues posed by emerging technologies, related revenue considerations and environmental issues in modern telecommunications practice specific to service providers' perspectives. The topic-wise problems studied and analyzed are as follows: (1) A comprehensive portrayal of managerial concerns and considerations on the technoeconomical perspectives vis-a-vis modern telecommunications; (2) Relevant analytical studies pertinent to: (1) "Greenfield starts" in a fresh, telecommunications deployment in a virgin service zone; (2) Embedded architectures; (3) Technology enhancements; (4) Environmental issues. The greenfield effort is analyzed to portray the feasibility of achieving technoeconomically optimal alternative designs. The embedded architecture refers to the prevailing infrastructure and their optimal usage is indicated via an arbitrated traffic-sharing technique. Concerning technology enhancements, "all-optical" technology is indicated as the ultimate goal. However, in the interim period, the optimal use of transitory technology such xDSL, MPLS, and others, is suggested and studied. Lastly, the environmental implications that coexist with technoeconomical impacts on modern telecommunications deployment are analyzed.
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Date Issued: 2000
PURL: http://purl.flvc.org/fcla/dt/12655
Subject Headings: Telecommunication systems--Management, Engineering economy, Telecommunication systems--Environmental aspects
Format: Document (PDF)

Title: Information-theoretic aspects of local access techniques/ADSL with or without ATM-centric considerations.
Creator: Preechayasomboon, Apiruck., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research proposed and elaborated in this dissertation is concerned with the development of new and smart techniques for subchannel allocation in the asymmetric digital subscriber lines (ADSLs). The ADSL refers to a class of access technology adopted currently in modern telecommunications to make use of the available channel capacity on the twisted copper-wires, which exist in the "last-mile" between the central office and subscribers. This available spectrum on the voice grade copper...
Show moreThe research proposed and elaborated in this dissertation is concerned with the development of new and smart techniques for subchannel allocation in the asymmetric digital subscriber lines (ADSLs). The ADSL refers to a class of access technology adopted currently in modern telecommunications to make use of the available channel capacity on the twisted copper-wires, which exist in the "last-mile" between the central office and subscribers. This available spectrum on the voice grade copper-lines is judiciously used to transport broadband data over the last mile regime. For this purpose, the channel capacity on the access lines is segmented in subchannels and the traffic to be transported is placed on the subchannels matching the bit-rates of the traffic to the subchannel capacity (as dictated by Hartley-Shannon law). The available subchannels for downstream and upstreams are of different extents (640 kbps for upstream and 9 Mbps for downstream); and, hence are qualified as asymmetric transports. Relevant to the subchannel allocation as above, the specific research, carried out can be enumerated as follows: (1) Development of a subchannel allocation metric (SAM) on the basis of information-theoretic considerations and duly accounting for noise/interference effects on the access lines and BER-based information-impairments on the trunks (feeding the access lines); (2) Use of SAM as an algorithmic support to train an artificial neural network (ANN), which is facilitated at the ADSL modem performing subchannel allocation. A new version of ANN training (and subchannel allocation prediction) strategies is developed by implementing the ANN operation in the entropy-plane. This technique allows a fast convergence of the ANN compatible for telecommunication transports. The incorporation of ANN in the modem renders the subchannel allocation smart; (3) Fuzzy considerations are also included in the ANN indicated above and operation of ADSL modem is then tuned to function as an intelligent neuro inference engine in its efforts towards subchannel allocation; (4) ATM support on ADSL lines is investigated and a scheme for allocating the permanent and switched virtual circuits (supporting ATM specified traffic) on the subchannels of access lines is developed. Relevant call-blocking probabilities are assessed; (5) Lastly, the EMI/RFI, and crosstalks on access lines are studied in the framework of practical considerations and mitigatory efforts are suggested thereof. Simulated results using data commensurate with practical aspects of ADSL transport are furnished and discussed. Background literature is comprehensively presented chapterwise and scope for future work is identified via open questions in the concluding chapter.
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Date Issued: 2000
PURL: http://purl.flvc.org/fcla/dt/12652
Subject Headings: Data transmission systems, Asynchronous transfer mode, Information theory
Format: Document (PDF)

Title: A complex system characterization of modern telecommunication systems: Application to ATM services.
Creator: Deecharoenkul, Wichai., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research addressed and reported in this dissertation primarily refers to the scope of characterizing modern telecommunication services as complex systems. The qualifying attributes, which allow such a characterization are three-folded: (i) Size of the network supporting massive traffics; (ii) heterogeneous characteristics of the traffics constituted by a mix of data, voice and video transmissions; and (iii) quality of service (QOS) considerations as met by a variety resources....
Show moreThe research addressed and reported in this dissertation primarily refers to the scope of characterizing modern telecommunication services as complex systems. The qualifying attributes, which allow such a characterization are three-folded: (i) Size of the network supporting massive traffics; (ii) heterogeneous characteristics of the traffics constituted by a mix of data, voice and video transmissions; and (iii) quality of service (QOS) considerations as met by a variety resources. Commensurate with the scope of the research indicated above, the underlying principles of information-theoretics are adopted as the background concept of the studies performed and a complexity-metric is defined via entropy considerations. Hence, the following aspects of modern telecommunications are studied: The first one refers to using entropy as a metric to assess the traffic characteristics in ATM telecommunications. Relevant heterogeneous traffic is modeled and analyzed in terms of the complexity-metric. Impairment considerations (such as cell-losses) due to queueing and/or finite-buffer sizes are estimated via information-loss specifications. The results are compared with those of conventional queueing-theoretics based analysis. The second consideration uses the complexity-metric to implement the so-called call admission control (CAC) in ATM transmissions. The complexity-metric is considered as a decision-theoretic parameter and a fuzzy inference engine is constructed to facilitate a real-time CAC. The third contribution of this research is pertinent to the development of an artificial neural network (ANN) implemented to perform CAC using the complexity-metric as the training parameter characterizing the input calls, which compete to get admission into the network. The real-time performance of the ANN in such CAC implementations is demonstrated. The fourth effort of this research is directed to portray the cybernetic perspectives of a complex system. Again, the interacting structure of the technology and economics of telecommunication systems is considered and the associated complexity is elucidated in terms of the entropy profile of the subsystems. Hence, optimized (or suboptimal) alternative designs of a network based on technoeconomical considerations are obtained. This dissertation also includes relevant literature survey and background details. It concludes with a discussion on the results and inferences on the research carried out. Further, the scope for future study is identified and open-questions are enumerated.
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Date Issued: 2000
PURL: http://purl.flvc.org/fcla/dt/12642
Subject Headings: Telecommunication systems, Asynchronous transfer mode, Computational complexity
Format: Document (PDF)

Title: Information-theoretics based analysis of hard handoffs in mobile communications.
Creator: Bendett, Raymond Morris., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description: The research proposed and elaborated in this dissertation is concerned with the development of new decision algorithms for hard handoff strategies in mobile communication systems. Specifically, the research tasks envisaged include the following: (1) Use of information-theoretics based statistical distance measures as a metric for hard handoff decisions; (2) A study to evaluate the log-likelihood criterion towards decision considerations to perform the hard handoff; (3) Development of a...
Show moreThe research proposed and elaborated in this dissertation is concerned with the development of new decision algorithms for hard handoff strategies in mobile communication systems. Specifically, the research tasks envisaged include the following: (1) Use of information-theoretics based statistical distance measures as a metric for hard handoff decisions; (2) A study to evaluate the log-likelihood criterion towards decision considerations to perform the hard handoff; (3) Development of a statistical model to evaluate optimum instants of measurements of the metric used for hard handoff decision. The aforesaid objectives refer to a practical scenario in which a mobile station (MS) traveling away from a serving base station (BS-I) may suffer communications impairment due to interference and shadowing affects, especially in an urban environment. As a result, it will seek to switch over to another base station (BS-II) that facilitates a stronger signal level. This is called handoff procedure. (The hard handoff refers to the specific case in which only one base station serves the mobile at the instant of handover). Classically, the handoff decision is done on the basis of the difference between received signal strengths (RSS) from BS-I and BS-II. The algorithms developed here, in contrast, stipulate the decision criterion set by the statistical divergence and/or log-likelihood ratio that exists between the received signals. The purpose of the present study is to evaluate the relative efficacy of the conventional and proposed algorithms in reference to: (i) Minimization of unnecessary handoffs ("ping-pongs"); (ii) Minimization of delay in handing over; (iii) Ease of implementation and (iv) Minimization of possible call dropouts due to ineffective handover envisaged. Simulated results with data commensurate with practical considerations are furnished and discussed. Background literature is presented in the introductory chapter and scope for future work is identified via open questions in the concluding chapter.
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Date Issued: 2000
PURL: http://purl.flvc.org/fcla/dt/12639
Subject Headings: Mobile communication systems, Information theory, Algorithms
Format: Document (PDF)

Asynchronous transfer mode (5)	+ -
Stochastic processes (3)	+ -
Bioinformatics (2)	+ -
Bluetooth technology (2)	+ -
Composite materials (2)	+ -

Data mining (2)	+ -
Data transmission systems (2)	+ -
Electromagnetic waves--Scattering (2)	+ -
Information theory (2)	+ -
Neural networks (Computer science) (2)	+ -
Wireless communication systems (2)	+ -
Algorithms (1)	+ -
Antennas (Electronics) (1)	+ -
Artificial intelligence (1)	+ -
Bioelectrochemistry--Research (1)	+ -
Biosensors--Materials (1)	+ -
Blood sugar monitoring (1)	+ -
Broadband communication systems (1)	+ -
CDPD (Standard) (1)	+ -
Composite materials--Electric properties (1)	+ -
Composite materials--Magnetic properties (1)	+ -
Computational complexity (1)	+ -
Computer algorithms (1)	+ -
Computer modeling (1)	+ -
Computer networks (1)	+ -
Computer simulation (1)	+ -
Crime prevention (1)	+ -
Cytogenetics (1)	+ -
Diabetes--Metabolism (1)	+ -
Diabetes--Risk factors--Identification (1)	+ -

College of Engineering and Computer Science (29)	+ -
Florida Atlantic University (29)	+ -
De Groff, Dolores F. (2)	+ -
Morgera, Salvatore D. (2)	+ -
Abusalah, Salahalddin Tawfiq. (1)	+ -

Arredondo, Tomas Vidal. (1)	+ -
Arsali, Mohammad H. (1)	+ -
Baeza, Daniel Michael. (1)	+ -
Bendett, Raymond Morris. (1)	+ -
Dabbas, Mohammad A. (1)	+ -
Deecharoenkul, Wichai. (1)	+ -
Gu, Chaoli. (1)	+ -
Hsu, Sam (1)	+ -
Katragadda, Subramaniam. (1)	+ -
Laupattarakasem, Pet. (1)	+ -
Leesirikul, Meta. (1)	+ -
Lim, Swee Hock (1)	+ -
Lordan, Richard Joseph. (1)	+ -
Noori, Aziz Ulhaq (1)	+ -
Palaniappa, Malathi. (1)	+ -
Pandya, Shivani. (1)	+ -
Park, Joseph C. (1)	+ -
Perez, Angela S. (1)	+ -
Peterson, Vance Howard (1)	+ -
Preechayasomboon, Apiruck. (1)	+ -
Preedalumpabut, Wichean. (1)	+ -
Roth, Zvi S. (1)	+ -
Shankar, Poornima (1)	+ -

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