基于树的按需Ad Hoc组播路由协议性能比较和分析

对基于树的按需组播路由协议ADMR和MAODV进行了对比研究，分析了不同树形结构及树的维护机制对协议性能的影响．使用ns2仿真平台对两种组播路由协议在不同场景下的性能进行了仿真，对分析结果进行了验证，结果表明MAODV的共享树结构及维护机制引入大量的路由开销，是协议性能的瓶颈，而ADMR协议具有较高的数据包传送率和较小的延迟．

Performance comparison and analysis of the tree-based on-demand multicast routing protocol in Ad Hoc networks

This paper presents a research on two tree-based on-demand multicast routing protocols, namely ADMR and MAODV. It analyzes the influences of different tree structures and different tree maintenances on the performance of these two protocols and draws a conclusion. A comparative performance evaluation of these protocols under different MANET scenarios is given by the ns2 platform. Simulation results further verifies the analytic results. The following conclusions can be drawn from the simulation results that the shared tree structure and the routing overheads of tree maintenance form the bottleneck of MAODV and that ADMR has a higher PDR and a shorter delay.