Adaptive Distributed Channel Assignment in Wireless Mesh Networks

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題名:	Adaptive Distributed Channel Assignment in Wireless Mesh Networks
作者:	吳建民;Wu, Chien-Min;Wang, Yi-Yuan
貢獻者:	資訊工程學系
關鍵詞:	ADCA;TDMA;WMNs;Spatial reuse;Control overhead
日期:	2008-11
上傳時間:	2017-07-19 17:04:40 (UTC+8)
摘要:	From the channel assignment schemes in time division multiple access (TDMA) slot assignment protocols developed in previous studies, we have found that these protocols do not have a convenient frame length reduction scheme after the expansion of the frame length. As the network size grows, the frame length expands rapidly, particularly when we set it as a power of two. A very long frame may result in poor channel utilization when it contains many unused slots. In this paper, we consider a wireless mesh network with a TDMA structure. We divide each code into time slots to form the channels. We propose a dynamic frame length expansion and recovery method termed adaptive distributed channel assignment (ADCA). This strategy is designed to enhance the utilization of the available channels by taking advantage of the spatial reuse concept. In ADCA, an increase in spatial reuse is achieved by adding a certain amount of control overhead. We show that the bandwidth saved due to the channel spatial reuse is larger than the additional bandwidth spent on the control overhead.
關聯:	Wireless Personal Communications vol. 47, no. 3 pp.362-382
顯示於類別:	[資訊工程學系] 期刊論文

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