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| Improved backup routing protocol of AODV based on PLC network |
| LI Xun-wen1, JIN Wen-guang1, SHAO Qi-qing2, GAO Wei1 |
1. Department of Information Science and Electronic Engineering, Zhejiang University,
Hangzhou 310027, China;2. China Mobile Huzhou Branch, Huzhou 313000, China |
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Abstract An improved backup routing protocol of AODV——AODV-IB was proposed and deployed in power line communication (PLC) network in order to reduce the delay of AODV routing reconstruction.The AODV-IB modified AODV-ABL and used Hello message to carry the backup routing information of destination node IP,serial number and hops. According to the principle of the shortest path and the regulation of avoiding backup routing loops,each node with the AODV-IB can get optimal backup routing information after cyclical exchange of Hello message.Each node with the AODV-IB can maintain primary routing and backup routing at the same time.Once the primary link breaks,it can be quickly recovered by using the backup routing.For the performance evaluation of the AODV-IB,a test-bed based on PLC network was constructed.Protocols of AODV-IB, AODV,AODV-BR, AODV-ABL and IBR-AODV were tested. Experimental results show that AODV-IB is vastly superior to other four protocols in the aspects of reducing the delay and improving the packet delivery ratio.AODV-IB is more suitable for the PLC network．
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Published: 01 July 2013
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基于PLC网络的改进AODV备份路由协议
为了减少AODV协议链路断裂时的修复时间,提出利用Hello消息改进AODV的备份路由协议——AODV-IB,并将其应用于电力线通信(PLC)网络.AODV-IB在AODV-ABL协议的基础上,利用Hello消息携带备份路由的目的节点IP、序列号与跳数等信息,通过制定避免备份路由产生环路的规则,依据最短路径的原则,使各个节点周期交换Hello消息后均能够获得最佳的备份路由信息,即使得节点能够同时维护主路由与备份路由,并在主链路断裂时可以利用备份路由进行快速恢复.为了测试协议性能,搭建基于电力线通信网络的测试平台,对AODV-IB以及AODV、AODV-BR、AODV-ABL、IBR-AODV 5种协议进行测试.实验结果表明,电力线通信网络环境中AODV-IB在减少延时、提高数据包投递率方面较其余4种协议性能更好,更加适合在电力线通信网络中使用.
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