Testbeds and Research Infrastructures for the Development of Networks & Communities, International Conference on (2009)
Washington, DC, USA
Apr. 6, 2009 to Apr. 8, 2009
Rong He , Provincial Key Lab of Information Coding&Transmission, Southwest Jiaotong University, Chengdu 610031, China
Xuming Fang , Provincial Key Lab of Information Coding&Transmission, Southwest Jiaotong University, Chengdu 610031, China
This paper presents a bandwidth occupied time proportion fair MAC algorithm (BOTP-FMAC) for WLAN and Wireless Mesh Network (WMN). It aims to address the unfairness problem in enhanced distributed channel access (EDCA) mechanism, in which higher-priority streaming traffic flows intend to severely deprive the access opportunity of lower-priority traffic flows due to the capture effect, especially when the network load is near saturation. By dynamically tuning the parameters of channel contention and the threshold of bandwidth occupied time proportion for priority queue adaptively, BOTP-FMAC algorithm can achieve a weighted fair allocation of the bandwidth resource among different traffic flows. The simulation results indicate that our proposed algorithm substantially improves the fairness and attains a greater aggregate throughput. Additionally, it is easy to carry out without generating network overhead.
Xuming Fang and Rong He, "A fair MAC scheme for EDCA based wireless networks," Testbeds and Research Infrastructures for the Development of Networks & Communities, International Conference on(TRIDENTCOM), Washington, DC, USA, 2009, pp. 1-6.