Achieving scalable performance in large-scale IEEE 802.11 wireless networks
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員

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摘要In large-scale wireless networks, interferences among nodes limit channel spatial re-use and are a main hurdle for scalable performance. There are two types of interferences: 1) physical interferences due to the receiver's inability to decode a signal when the powers received from other signals are large; and 2) protocol interferences imposed by the specific multi-access protocol being used. This paper models interference types 1 and 2 in terms of a set of inequality constraints for the IEEE 802.11 CSMA/CA protocol. Based on the inequalities, we investigate the impact of the parameters basic-rate, data-rate, and physical preamble-rate. on channel spatial re-use. Regardless of the parameter settings, the total capacity in an 802.11 network reaches a ceiling as the number of node n increases. We identify the fundamental causes for the non-scalable performance, and show that 802.11 can be made to be scalable with a simple modification, achieving O(n) throughput without adaptive power control. We believe that this is the first paper that has demonstrated this.
著者Ng PC, Liew SC, Jiang LB
會議名稱IEEE Wireless Communications and Networking Conference
會議開始日13.03.2005
會議完結日17.03.2005
會議地點New Orleans
會議國家/地區美國
詳細描述ed. by Ping Chung Ng, Soung Chang Liew, and Li Bin Jiang.
出版年份2005
月份1
日期1
出版社IEEE
頁次69 - 74
國際標準書號0-7803-8966-2
國際標準期刊號1525-3511
語言英式英語
關鍵詞ad hoc networks; analysis; capacity; IEEE 802.11; performance; scalable performance; wireless networks
Web of Science 學科類別Telecommunications

上次更新時間 2020-27-10 於 02:09