Abstract
It is essential to design QoS supported MAC mechanism for supporting QoS in WLAN. In [1], we have proposed a new backkoff algorithm, named RWBO+BEB, to decrease the packet collision probability significantly. In this paper, we explore how to make RWBO+BEB support service differentiation in WLAN, and propose a novel proportional service differentiation algorithm, named p-RWBO, to allocate the wireless bandwidth according to the bandwidth ratio of each station. The basic idea of p-RWBO is that different priority stations use different walking probability, p w , which is a key parameter in RWBO+BEB. An analytical model is proposed to analyze how to choose p w according to the bandwidth ratios of stations. The simulation results indicate that p-RWBO can allocate the wireless bandwidth according to the bandwidth ratio of each station.
Supported by the National Science Foundation of China (90304004); the Science and Technology Research Project of Chongqing Municipal Education Commission of China (050310, KJ050503), the Research Grants by the Science & Tech. Commission of Chongqing(8817), the Research grants by the Ministry of Personnel of China.
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Yun, L., Long, KP., Zhao, WL., Wang, C., Sohraby, K. (2005). A New Backoff Algorithm to Support Service Differentiation in Ad Hoc Networks. In: Jia, X., Wu, J., He, Y. (eds) Mobile Ad-hoc and Sensor Networks. MSN 2005. Lecture Notes in Computer Science, vol 3794. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11599463_56
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DOI: https://doi.org/10.1007/11599463_56
Publisher Name: Springer, Berlin, Heidelberg
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