基于OPNET仿真平台的DSR协议性能研究

Research on the Performance of DSR Protocol Based on OPNET Simulating Platform

Ad Hoc网络的路由算法是在网络拓扑高度变化的情况下,无线自组网能否实现网络自组的关键技术。本文介绍了AdHoc网络的基于源驱动的按需路由选择协议DSR,重点分析了基于OPNET的DSR模型的节点及其所支持的特性,并基于OPNET对全部采用固定节点的Ad Hoc网络,利用DSR作为其路由协议,分设场景进行仿真,对DSR协议随着节点数增多所表现出来的性能进行了比较和分析,最后总结了目前DSR协议存在的问题并提出了适当的改进建议。

In view of of fast changes in network topology, routing algorithm for Ad Hoc networks becomes the key technology to realize Ad Hoe networks. This article introduces an on-demand routing protocol DSR based on Source-driven in Ad Hoe networks, analyzes the nodes and characteristics of DSR model based on OPNET, simulates some divided scenes of Ad Hoe networks based on OPNET with all fixed nodes using DSR routing protocol, compares and analyzes the performance of DSR protocol with the increasing of nodes number, finally summarizes issues of current DSR protocol and proposes some proper suggestions.