基于及时反馈和代替路由发现的DSR路由维护策略  

A novel route maintenance mechanism for DSR protocol based on quick-feedback and intermediate-node route discovery

作　　者：陈俊杰[1] 陈德礼[1] 林荔[1] 

机构地区：[1]莆田学院电子信息工程系,福建莆田351100

出　　处：《郑州轻工业学院学报（自然科学版）》2008年第6期54-58,共5页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：通过引入及时反馈和代替路由发现2个策略,提出了一种新的DSR路由维护算法,并用于单源路由失效维护.及时反馈策略将中间节点的替换路由信息及时反馈给源节点,若无替换路由,可由中间节点代替源节点进行路由发现,以减少节点路由广播次数或范围.仿真试验结果表明,新路由维护策略能够有效提高网络包投递率,减少网络路由开销,但可能导致端到端延迟增大.A new local recovery mechanism for DSR protocol was proposed by introduction of quick-feedback and intermediate-node route discovery mechanism. The quick-feedback inform the source new alternative route to destination to avoid route discovery, or the intermediate node can initiate new route for source in local area when it is failed. The simulation results show that the proposed mechanism can improve the packet delivery ratio and reduce the routing overhead, whereas it may cause longer end-to-end delay than the DSR original route maintenance mechanism.

关 键 词：DSR 路由维护 单源路由 及时反馈 代替路由发现 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]