【摘要】 目前研究人员已提出多种Adhoc网络组播路由协议,根据MANET制定的路由协议性能评价标准,还没有一种组播路由协议能满足所有的性能要求,因此对协议在各种应用环境下的性能进行测试和比较,有助于人们选择和设计组播路由协议。该文首先介绍了两种组播路由协议—ODMRP和DBRMP的基本思想,接着提出这两种协议的控制开销计算方法,并对它们的性能进行了定性比较,最后使用了NS-2仿真平台对两种组播路由协议在各种应用环境下的性能进行了仿真,并根据仿真结果详细比较和分析了两种协议在各种应用环境下的性能特点。更多还原

【Abstract】 At present ,researchers have proposed a number of multicast routing protocols for ad hoc networks.However,none of them can meet all performance evaluation criteria of routing protocol defined by MANET.Thus,testing and com-paring the performance of the multicast routing protocol in different application environments will help people to design and choose proper protocol.Firstly this paper introduces two multicast routing protocols for ad hoc networks,namely ODMRP and DBRMP ,and then gives the method concerning computation of control overhead and qualitative compar-isons of these two protocols.Finally,according to the simulation results with NS2,the paper compares and analyzes the performances of them in detail.更多还原