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Modeling Perceived Audio for Cellular Phones Based on Field Data
Title
Modeling Perceived Audio for Cellular Phones Based on Field Data.
Creator
Kitbamrung, Pateep, Pandya, Abhijit S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Even though, the current cellular network provides the user with a wide array of services, for a typical user voice communication is still the primary usage. It has become increasingly important for a cellular network provider to provide the customers with the clearest possible end-to-end speech during a call. However, this perceptually motivated QoS is hard to measure. While the main goal of this research has been on the modeling of the perceptual audio quality, this thesis focuses on the...
Show moreEven though, the current cellular network provides the user with a wide array of services, for a typical user voice communication is still the primary usage. It has become increasingly important for a cellular network provider to provide the customers with the clearest possible end-to-end speech during a call. However, this perceptually motivated QoS is hard to measure. While the main goal of this research has been on the modeling of the perceptual audio quality, this thesis focuses on the discovery of procedures for collecting audio and diagnostic data, the evaluation of the captured audio, and the mapping and visualization of the diagnostic and audio related data. The correct application of these modified procedures should increase the productivity of the drive test team as well as provides a platform for the accurate assessment of the data collected.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00012530
Subject Headings
Computer network protocols, Wireless communication systems--Quality control, Routers (Computer networks), Mobile communication systems--Quality control
Format
Document (PDF)
Knowledge Discovery Through Drive Test Data Visualization
Title
Knowledge Discovery Through Drive Test Data Visualization.
Creator
Saxena, Shalini, Pandya, Abhijit S., Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
With the increasing number of cellular phone service subscribers, the telecommunications service providers have placed immense emphasis on improving audio quality and ensure fewer dropped calls. Handoff behavior of all handsets is an important factor in quality of service of a mobile phone service. This thesis focuses on the analysis of large volumes of diagnostic data collected from mobile phones in the real world and the identification of aberrant behavior of a mobile handset under test by...
Show moreWith the increasing number of cellular phone service subscribers, the telecommunications service providers have placed immense emphasis on improving audio quality and ensure fewer dropped calls. Handoff behavior of all handsets is an important factor in quality of service of a mobile phone service. This thesis focuses on the analysis of large volumes of diagnostic data collected from mobile phones in the real world and the identification of aberrant behavior of a mobile handset under test by means of drive test data visualization. Our target was to identify poor mobility decisions that are made by the handsets in calls. Premature, delayed or exceedingly sensitive decisions are considered poor mobility decisions. The goal was to compare a set of behaviors from a baseline unit (one accepted to generally operate well). We were able to identify a particular call that was exhibiting a different path (talking to a different cell than expected or taking longer to move to a new cell). We designed a chi-square statistical test to evaluate the performance of specific mobile handset models. We also developed a mobility tool that evaluated the handset's performance by means of mapping the handoffs on the Google Maps. The mapping of the handoffs by means of the Google Maps were very powerful in identifying the above mentioned mobility patterns.
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Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00012548
Subject Headings
Mobile communication systems--Quality control, Wireless communication systems--Technological innovations, Cellular telephones--Design
Format
Document (PDF)