A simple adaptive optimization scheme for IEEE 802.11 with differentiated channel access

Authors:
Jianbing Mao;Yuming Mao;Supeng Leng;Xiang Bai
Affiliations:
National Key Lab of Communication, University of Electronic Science and Technology of China, Chengdu, China;National Key Lab of Communication, University of Electronic Science and Technology of China, Chengdu, China;National Key Lab of Communication, University of Electronic Science and Technology of China, Chengdu, China;National Key Lab of Communication, University of Electronic Science and Technology of China, Chengdu, China
Venue:
IEEE Communications Letters
Year:
2009

Citing 2
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Abstract

This letter proposes an adaptive scheme to optimize the system throughput of IEEE 802.11 with differentiated channel access ability. Due to the difficulty of estimating the number of active stations and that approaches based on the estimation may not converge reported in previous research, the proposed scheme is developed to maximize the system throughput without the requirement of station number information while providing service differentiation among different traffic classes. Specially, the scheme is simple to implement and it only requires to measure the time the channel is in idle and collision states separately. Performance evaluation results show that the scheme is effective in achieving near to the theoretical maximum system throughput.