Distributed QoS control for link adaptive wireless LANs

Ryoichi Shinkuma, Junpei Maeda, Tatsuro Takahashi

研究成果: Conference contribution

抄録

In wireless local area networks (WLANs), the necessity of quality-of-service (QoS) control for uplink flows is greater and greater with interactive applications being more popular. It is also important that fairness between flows transmitted by stations with different physical transmission rates is ensured in QoS control for link adaptive WLANs, which is widely used nowadays. In this paper, we propose a novel distributed access scheme to satisfy these requirements, called QC-DCA. QC-DCA adaptively controls the parameters of carrier sense multiple access with collision avoidance (CSMA/CA). QC-CDA has two QoS control functions: guarantee and classification. QC-DCA guarantees target throughputs and packet delays by quickly adjusting CSMA/CA parameters. In QoS classification, the difference of throughputs and packet delays between different QoS classes is maintained. In both of them, QC-DCA solves unfairness caused by difference of transmission rates in the physical layer. We evaluate throughput and delay performances of the proposed scheme through computer simulations. The results verify the viability of the proposed scheme.

本文言語English
ホスト出版物のタイトル2005 Asia-Pacific Conference on Communications
ページ362-366
ページ数5
DOI
出版ステータスPublished - 2005
外部発表はい
イベント2005 Asia-Pacific Conference on Communications - Perth, Western Australia, Australia
継続期間: 2005 10月 32005 10月 5

出版物シリーズ

名前2005 Asia-Pacific Conference on Communications
2005

Conference

Conference2005 Asia-Pacific Conference on Communications
国/地域Australia
CityPerth, Western Australia
Period05/10/305/10/5

ASJC Scopus subject areas

  • 工学(全般)

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