无线M esh网络中基于链路负载估算的拥塞控制策略

摘要

针对无线Mesh网络的网络特性，提出了一种基于链路负载估算的拥塞控制策略LLECC。LLECC算法计算有效链路带宽和链路负载估算确定RED算法中的调整因子，通过调整因子调整RED算法中的参数从而实现动态的对无线网络拥塞控制。详细讨论了LLECC算法的实现过程和相关参数的计算方法，通过仿真分析验证了该算法对无线Mesh网络性能的提高。%Aiming at the network characteristics of wireless Mesh networks(WMNs),an LLECC congestion control strategy based on link load estimation is proposed,which estimates the tuning factor of RED algorithm by calculating the available link bandwidth and link loads. The parameters in RED algorithm are adjusted by tuning factor to realize dynamic wireless network congestion control. The realization process of LLECC algorithm and computing method of parameters are discussed in detail. Through the analysis and simulation,it is proved that the LLECC algorithm can increase the performance of the wireless Mesh networks.