基于IEEE 802.11e的公平性研究

With the worldwide application of WLAN (short for Wireless Local Area Networks), improvement of performance parameters in WLAN has become the focus of relative researches. Additionally, due to the huge impaction of protocol of MAC layer on network, whose performance improvement shows necessity to the performance of WLAN. The purpose of IEEE 802.11e is to provide differentiate services of various kinds of priorities for multimedia services, thus performance of which become the key assurance of QoS. Fairness, as the primary parameter of performance measurement, if of each node there will be an optimization of network. Fairness is the significant discussion in this paper, after analysis of reasons of unfairness, perspective improved schemes have been proposed; meanwhile the simulation shows the feasibility of the scheme.