关键词: 不公平性, 长跳流, 缓存管理, 改进的队列管理算法（IQMA）

Abstract: In wireless mesh network，there’re serious unfairness problems among the datas with different forwarded hops and APs at different physical location.The combined strategy is proposed that involves buffer management arithmetic and also improves MAC mechanism.On the basis of analyzing the main reasons that result in unfairness in wireless mesh network，this paper advances the compete windows in MAC Layer，and then adopts buffer management algorithm.In this way，it acquires a new queue management algorithm named Improving Queue Management Algorithm（IQMA）.The simulation results show that the new scheme solves the unfairness problems between nodes and reduce the influence of long forwarded distance，consequently，it enhances the utility of radio resource.

Key words: unfairness, long hops, buffer management, Improving Queue Management Algorithm（IQMA）