摘要： 按需路由协议动态源路由(DSR)是Ad Hoc网络路由协议中性能较优的一种，但对快速变化的移动网络拓扑结构反应较慢，造成过多地启动不必要的路由发现过程以及数据包发送路径绕远，从而导致效率降低。该文针对这一问题，对DSR协议进行优化，提出节点局部自适应机制，对于路由断路绕远等问题进行自动恢复调整。给出局部自适应DSR路由协议LSDSR，优化后的协议减少了路由发现次数和传输时延，更适用于实时业务。
关键词:
无线自组织网,
动态源路由,
局部自适应,
路由发现,
传输时延
Abstract: The on-demand routing protocol DSR is a good performance protocol in mobile Ad Hoc networks. However, the defect of it is that it is not quick enough to adapt the fast-changing topology of the Ad Hoc networks. It causes many unneeded times of route discovering, and the data-packets always don’t take the shortest route. These result in the low-efficiency. To solve the problem, DSR is optimized in this paper, and a mechanism called local self-adaptation is proposed, which can recover and adjust the route automatically. Also it presents a new routing protocol called LSDSR, which can obviously decrease the times of route discovering and transmission latency, and much more adapt to the real-time performance.
Key words:
wireless Ad Hoc network,
DSR,
local self-adaptation,
route discovering,
transmission latency
中图分类号:
屠梓浩;吴荣泉;钱立群. 无线Ad Hoc网络DSR路由协议的优化设计[J]. 计算机工程, 2009, 35(4): 97-99.
TU Zi-hao; WU Rong-quan; QIAN Li-qun. Optimization Design for DSR Routing Protocol in Wireless Ad Hoc Networks[J]. Computer Engineering, 2009, 35(4): 97-99.