Polling-based protocols for packet voice transport over IEEE 802.11 wireless local area networks

被引：29
|
作者：
University of British Columbia [1 ]
不详 [2 ]
不详 [3 ]
不详 [4 ]
不详 [5 ]
不详 [6 ]
不详 [7 ]
机构：
来源：
IEEE Wirel. Commun. | 2006年 / 1卷 / 22-29期
关键词：
Computer simulation - Local area networks - Speech communication - Telecommunication traffic - Time division multiple access;
D O I：
10.1109/MWC.2006.1593521
中图分类号：
学科分类号：
摘要：
In this article we present a survey of different polling-based protocols for supporting voice over IEEE 802.11 wireless local area networks (WLANs). In particular, three key issues are discussed: managing a polling list, determining the polling sequence, and reducing polling overhead. These discussions motivate the proposal of an isochronous coordination function (ICF) for transporting voice packets over IEEE 802.11 WLANs, which combines the advantages of some of the previous protocols. Emulating a dynamic TDMA-like service, ICF can greatly reduce polling overhead and provide fair polling for both uplink and downlink voice traffic by means of a cyclic polling queue. Some simulation results are presented to illustrate the advantages of ICF. © 2006 IEEE.
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