为Adhoc网络提出了一种基于模糊逻辑的媒体接入控制层协议。该协议通过在MAC层采用模糊逻辑协调各个相互影响的数据流,为低优先级数据流选择附加退避窗口以减少其自身接入信道概率。通过这种方法,使得高优先级数据流在各种背景流量的条件下,均能够维持较高的端到端吞吐量和较低的端到端接入时延。仿真结果表明,该协议较802.11e协议更好地保护高优先级数据流的端到端时延和吞吐量。
A new medium access control (MAC) protocol based on fuzzy logic is proposed for Ad hoe networks. In MAC layer, the fuzzy logic is used to choose a proper add-in back-off window size for different priority flows. Thus, the low priority flows, interacted on the higher ones, can reduce their access probabilities. Simulation result shows that the new protocol can achieve better performance compared with 802.11 e protocol in the terms of end-to-end delay and throughput of high priority flows.