【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。更多还原

【Abstract】 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 sim- ulation results show that MOLSR-TM can not only improve the status of topology maintenance and the ability of adap- ting 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.更多还原