无线自组网络中公平带宽分配机制的研究

Research on fair bandwidth allocation scheme in wireless Ad Hoc networks

对已有的三种无线自组网络的带宽分配算法进行比较研究,并提出了一种新的基于代价的最大最小带宽分配机制。此机制不仅能保证最大最小公平性,而且可以适应无线网络的移动性引起的路由变化。仿真结果表明,该方法能够满足无线网络的约束,并且在移动的环境中也能够对无线网络数据流进行最大最小公平带宽分配。

Three models on bandwidth allocation for WANET are studied and compared.We propose a new price-based max-min fair bandwidth allocation scheme,which is shown to be adaptive to the routing changeovers arising from the mobility of wireless networks in the sense that the bandwidth allocation is still able to maintain max-min fairness for wireless mobile networks.The simulation results show that this method is able to meet the wireless constraint and to achieve max-min fairness among multi-hop flows in wireless networks even if the topology varies,as is the case in a mobile environment.