一种改进型DSR-I路由协议的设计与仿真  

Design and Simulation of an Improved DSR-I Routing Protocol

作　　者：吴磊[1] 皮智[1] 

机构地区：[1]北方工业大学计算机学院,北京100144

出　　处：《计算机技术与发展》2016年第2期17-21,共5页Computer Technology and Development

基　　金：北京市自然科学基金资助项目(4131001);中央支持地方专项(PXM2014_014212_000097);北京市属高等学校创新团队建设与教师职业发展计划项目(IDHT20130502)

摘　　要：动态源路由协议(DSR)是为移动自组织网络设计的路由协议,性能较优,但是DSR协议中存在路由不稳定、时延大以及能量不平衡等问题。针对DSR的这些不足,通过对DSR协议的研究分析,提出了一种基于权重、链路反馈和均衡能量的DSR改进型路由协议(DSR-I)。在满足权重的路径查找中选择能量高的节点充当中继,在数据包发送的过程中低能量的节点反馈能量状态,源端主动断开旧链路,从而变更路径,并采用NS2平台对DSR和DSR-I进行了仿真实验和性能分析。实验结果表明,改进后的DSR-I路由协议比较明显地改进了原DSR路由协议的性能。The DSR is a protocol designed for Ad hoc network,which possesses good performance. But it has problems including instable routing,long delay and unbalanced energy. Aimed at these shortages of DSR,through the research and analysis to DSR,an improved routing protocol is proposed based on weight,link feedback and equilibrium energy. The main idea is that nodes with higher energy are selected to act as a repeater in the path of meeting the weight and nodes with lower energy are used to feed back energy state in the process of data packets transmission. The source disconnects actively with the old link,thus changing the path. The NS2 platform is used to make a simulation experiments and performance analysis between DSR- I and DSR. These simulation results show that the improved DSR- I protocol promotes the performance obviously compared with the original DSR.

关 键 词：动态源路由协议 移动自组织网络 权重 均衡能量 NS2 仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]