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针对DSR协议不能充分利用潜在路由信息、路由缓存中过期路由影响路由选择准确性以及存在数据分组额外开销较大的问题,从cache管理策略方面提出了一种优化方案——采用链路缓存与“超时”机制相结合的方法,减小数据分组头的开销,充分利用潜在路由信息,保证路由缓存中路由选择的准确性。仿真结果表明,优化后的协议能够显著降低网络开销及时延。
In view of the fact that the DSR protocol can not make full use of the potential routing information, the outdated routes in the routing cache affect the accuracy of routing and the overhead of data packets is large, an optimization scheme is proposed from the cache management strategy - using link cache and Time-out "mechanism to reduce the overhead of data packet headers and make full use of potential routing information to ensure the accuracy of routing in routing cache. Simulation results show that the optimized protocol can significantly reduce the network overhead and delay.