An Evaluation Method of Speech Quality in Wireless LAN

Journal of South China University of Technology (Natural Science Edition) ›› 2008, Vol. 36 ›› Issue (5): 58-64.

• Electronics, Communication & Automation Technology • Previous Articles Next Articles

An Evaluation Method of Speech Quality in Wireless LAN

Liu Yuan-feng Du Ming-hui

School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China

Received:2007-06-06 Revised:2007-08-10 Online:2008-05-25 Published:2008-05-25
Contact: 刘远丰（1980-），男，博士生，主要从事无线局域网MAC层协议和多媒体性能方面的研究． E-mail:lyf16@163．com
About author:刘远丰（1980-），男，博士生，主要从事无线局域网MAC层协议和多媒体性能方面的研究．
Supported by:
广东省自然科学基金资助项目（05006593）

Abstract

Abstract:

In order to more accurately evaluate the speech quality in wireless LAN,the existing evaluating methods are analyzed,and an improved evaluation model is then proposed by considering the factors influencing the quality and the features of network simulation.Moreover,the real speech data are transmitted and evaluated via a simulation module.Finally,the mean opinion scores of speech quality in wireless LAN in different conditions are obtained with different playout algorithms.Analytical results show that the playout algorithms greatly affect the speech quality when the network conditions become worse.

Key words: wireless LAN, speech quality, evaluation, playout algorithm

Liu Yuan-feng Du Ming-hui. An Evaluation Method of Speech Quality in Wireless LAN[J]. Journal of South China University of Technology (Natural Science Edition), 2008, 36(5): 58-64.

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An Evaluation Method of Speech Quality in Wireless LAN

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