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

TitlePolling-based protocols for packet voice transport over IEEE 802.11 wireless local area networks
Publication TypeJournal Article
Year of Publication2006
AuthorsLam, R. Y. W., V. C. M. Leung, and H. C. B. Chan
JournalWireless Communications, IEEE
Volume13
Pagination22 - 29
Date Publishedfeb.
ISSN1536-1284
Keywordscomputer network management, cyclic polling queue, downlink voice traffic, IEEE 802.11 wireless local area networks, isochronous coordination function, packet voice transport, polling list management, polling-based protocols, queueing theory, TDMA-like service, telecommunication traffic, transport protocols, uplink voice traffic, voice communication, wireless LAN, WLAN
Abstract

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.

URLhttp://dx.doi.org/10.1109/MWC.2006.1593521
DOI10.1109/MWC.2006.1593521

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