基于主备链路稳定性的节能多径AOMDV-ES路由协议

摘要

AOMDV is a typical on-demand multipath distance vector routing protocol in MANET. As the resource is limited in MANET, the flooding route discovery means of AOMDV protocol can lead the control to significant overhead, and the paths selected with shortest delay may not be stable as well. As the cost of dynamically maintaining the multipath is quite large, it will offset the advantages of the multipath. To address the issues mentioned above, the thesis presents an energy-saving multipath routing protocol based on the stability of primary and alternate links (AOMDV-ES) , which combines the multipath routing with expending ring search. By simulating and comparing the AOMDV-ES and AOMDV protocols in different scenarios, the results show that the AOMDV-ES routing protocol improves the packet delivery ratio, average end-to-end delay and routing cost in whole versus AOMDV, which indicates the effectiveness of AOMDV-ES protocol.%移动Ad hoc网络中的AOMDV协议是典型的多径按需距离矢量路由协议.由于移动Ad hoc网络资源有限,AOMDV协议洪泛路由发现方式会导致控制开销过大,选择的最短时延路径不够稳定,如果动态维护多条路径则开销更大,会抵消多径路由协议的优势.针对以上问题,结合多径路由和扩展环搜索的思想提出一种基于主备链路稳定性的节能多径路由协议(AOMDV-ES).通过对AOMDV-ES协议和AOMDV协议在不同场景下进行仿真分析比较,结果显示AOMDV-ES协议的整体性能在路由开销、分组递交率和平均端到端延时方面较AOMDV协议有所改进.