基于拓扑维护的自适应多信道Ad Hoc路由协议  

An Adaptive Multichannel Ad Hoc Routing Protocol Based on Topology Maintenance

作　　者：任智[1] 郭伟[1] 周懿[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《计算机科学》2006年第5期32-34,62,共4页Computer Science

基　　金：国家自然科学基金项目(60472052);教育部"新世纪优秀人才支持计划"项目(2004年度);战术通信抗干扰技术国防科技重点实验室基金项目(51434020105ZS04)资助

摘　　要：提出了无线移动 Ad hoc 网中一种基于拓扑维护的自适应多信道路由协议:MOLSR-TM,该协议把拓扑维护状况感知和自适应控制算法引入 OLSR 以调整 HELLO 消息的发送频率和邻居记录表、拓扑记录表的刷新频率,从而增强节点掌握网络拓扑的能力,改善路由表项不全导致的分组寻路失败问题。性能分析和仿真结果表明:MOLSR-TM 能改善节点的拓扑维护状况,增强动态拓扑适应能力,提高数据成功率、端到端时延和网络吞吐率等性能。MOLSR-TM, an adaptive multichannel routing protocol based on topology maintenance is presented in this article. It introduces the perceiving of topology maintenance and an adaptive control algorithm into OLSR to adjust the transmitting frequency of control messages and the refresh rate of the neighbor table and the topology table. So that nodes can grasp network topology more accurately and the lost packets can be decreased. Performance analysis and simulation results show that MOLSR-TM can not only improve the status of topology maintenance and the ability of adapting the dynamic topology, but also improve the network performances, such as increasing the packet delivery rate and network throughput and reducing the end-to-end delay.

关 键 词：无线移动Ad hoc网 OLSR 多信道 自适应 拓扑维护 

分 类 号：TN929.5[电子电信—通信与信息系统] TN915.04[电子电信—信息与通信工程]