Voice capacity analysis of WLAN with unbalanced traffic

An analytical model to study the performance of wireless local area networks (WLANs) supporting asymmetric nonpersistent traffic using the IEEE 802.11 distributed coordination function mode for medium access control (MAC) is developed. Given the parameters of the MAC protocol and voice codecs, the v...

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Published in:IEEE transactions on vehicular technology 2006-05, Vol.55 (3), p.752-761
Main Authors: Cai, L.X., Xuemin Shen, Mark, J.W., Cai, L., Xiao, Yang
Format: Article
Language:English
Subjects:
Access protocols
Analytical models
Capacity planning
Codec
Codecs
Communication system traffic control
IEEE 802.11 DCF
Joints
Local area networks
Mathematical analysis
Media Access Protocol
Performance analysis
Speech analysis
Traffic control
Traffic engineering
Traffic flow
unbalanced traffic
Voice
voice capacity
Wireless communication
Wireless LAN
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cited_by cdi_FETCH-LOGICAL-c392t-f778686505101861cae553e71540d0552434a33288603a0e16c126ccac437de93
cites cdi_FETCH-LOGICAL-c392t-f778686505101861cae553e71540d0552434a33288603a0e16c126ccac437de93
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container_title IEEE transactions on vehicular technology
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creator Cai, L.X.
Xuemin Shen
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Cai, L.
Xiao, Yang
description An analytical model to study the performance of wireless local area networks (WLANs) supporting asymmetric nonpersistent traffic using the IEEE 802.11 distributed coordination function mode for medium access control (MAC) is developed. Given the parameters of the MAC protocol and voice codecs, the voice capacity of an infrastructure-based WLAN, in terms of the maximum number of voice connections that can be supported with satisfactory user-perceived quality, is obtained. In addition, voice capacity analysis reveals how the overheads from different layers, codec rate, and voice packetization interval affect voice traffic performance in WLANs, which provides an important guideline for network planning and management. The analytical results can be used for effective call admission control to guarantee the quality of voice connections. Extensive simulations have been performed to validate the analytical results.
doi_str_mv 10.1109/TVT.2006.874145
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1939-9359
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source IEEE Electronic Library (IEL) Journals
subjects Access protocols
Analytical models
Capacity planning
Codec
Codecs
Communication system traffic control
IEEE 802.11 DCF
Joints
Local area networks
Mathematical analysis
Media Access Protocol
Performance analysis
Speech analysis
Traffic control
Traffic engineering
Traffic flow
unbalanced traffic
Voice
voice capacity
Wireless communication
Wireless LAN
title Voice capacity analysis of WLAN with unbalanced traffic
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