DocumentCode
1292103
Title
On Maximizing VoIP Capacity and Energy Conservation in Multi-Rate WLANs
Author
Chin, Kwan-Wu
Author_Institution
Univ. of Wollongong, Wollongong, NSW, Australia
Volume
14
Issue
7
fYear
2010
fDate
7/1/2010 12:00:00 AM
Firstpage
611
Lastpage
613
Abstract
This letter highlights a key problem that arises when frame aggregation, a popular method for boosting VoIP capacity, is used in Wireless Local Area Networks (WLANs) that employ asynchronous power save mode (PSM). Specifically, it shows how the PSM proposed by the Wi-Fi Alliance renders frame aggregation ineffective. It then proposes a novel opportunistic scheduler that restores the benefits of frame aggregation whilst ensuring stations have minimal energy expenditure.
Keywords
Internet telephony; energy conservation; wireless LAN; VoIP capacity; asynchronous power save mode; energy conservation; multirate WLAN; opportunistic scheduler; voice-over-IP; wireless local area networks; Bit rate; Boosting; Capacity planning; Codecs; Delay; Energy conservation; Fading; Helium; IEEE 802.11g Standard; Internet telephony; Multicast algorithms; Wireless LAN; Wireless networks; IEEE 802.11; VoIP capacity; WLANs; opportunistic scheduling;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2010.07.100468
Filename
5545606
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