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论文:2012,Vol:30,Issue(5):739-745 |
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引用本文: |
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周文佳, 陈旿, 肖迪, 张鹏飞, 慕德俊. MANET网络中一种基于灰色区域的移动预测路由协议及多径备份路由扩展[J]. 西北工业大学 |
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Zhou Wenjia, Chen Wu, Xiao Di, Zhang Pengfei, Mu Dejun. An Effective Mobility Prediction Routing Protocol Based on Gray Zone and Its Multi-Path Routing Extension in MANET Networks[J]. Northwestern polytechnical university |
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MANET网络中一种基于灰色区域的移动预测路由协议及多径备份路由扩展 |
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周文佳1, 陈旿1, 肖迪1, 张鹏飞2, 慕德俊1 |
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1. 西北工业大学 自动化学院, 陕西 西安 710072; 2. 中国石油宝鸡石油机械有限责任公司, 陕西 宝鸡 721002 |
摘要: |
MANET网络中拓扑结构频繁变化的特点,经常导致网络存在通信路径不稳定,通信质量较差的情况。文章提出一种基于灰色区域的移动预测路由协议LP-OLSR,该协议能够适应网络拓扑结构的快速变化,结合节点灰色区域范围,预测链路未来时刻的连接状态,在链路失效前重新计算路由,减少因为链路中断产生的时延。并且结合多径技术扩展至LP-OLSR-M协议,通过多径路由算法寻找一条备份路径,在当前链路即将失效前切换至备份路径,进一步保证了数据的稳定传输。仿真结果表明,新协议的QoS指标较OLSR协议相比有了明显改善,有效提高了MANET网络的通信质量。 |
关键词:
路由算法
路由协议
网络协议
网络路由
卡尔曼滤波
计算机仿真
MANET网络
移动预测
灰色区域
多径路由
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An Effective Mobility Prediction Routing Protocol Based on Gray Zone and Its Multi-Path Routing Extension in MANET Networks |
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Zhou Wenjia1, Chen Wu1, Xiao Di1, Zhang Pengfei2, Mu Dejun1 |
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1. Department of Automatic Control, Northwestern Polytechnical University, Xi'an 710072, China; 2. CNPC Baoji Oilfield Machinery Co.,Ltd, Baoji 721002, China |
Abstract: |
As is well known, the topological structure in MANET networks changes frequently, causing the link in-stability of data transmission path and the poor quality of data transmission.We propose a mobility prediction rou-ting protocol based on gray zone.Its core consists of: (1) it can adapt to rapid changes in network topology, com-bine the scope of the gray zone of a node with node location information to predict the future link state and recalcu-late its routing table before a link failure occurs, thus reducing the delay caused by link break; (2) when the rou-ting protocol predicts that the neighbor node is about to be in a gray zone, it immediately invalidates the neighborzone, avoiding the existence of an unreliable link; (3) we use the multi-path routing algorithm to extend the exist-ing OLSR routing protocol into the multi-path routing protocol (LP-OLSR-M) to find a backup path; it switches tothe backup path before a failure occurs to the current link path, thus further ensuring the data transmission stabili-ty.The simulation results, given in Figs.3 through 5, and their analysis show preliminarily that our routing proto-col remarkably increases the packet delivery ratio and decreases the average time in queue and the average end-to-end delay compared with the traditional OLSR routing protocol, being indeed effective for improving the data trans-mission quality of MANET networks. |
Key words:
computer simulation
Kalman filters
routing algorithms
routing protocols
network protocols
net-work routing
MANET networks
mobility prediction
gray zone
multi-path routing protocol
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收稿日期: 2011-10-26
修回日期:
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DOI: |
基金项目: 西北工业大学基础研究基金(GBKY1004)资助 |
通讯作者:
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作者简介: 周文佳(1986-),女,西北工业大学博士研究生,主要从事无线移动自组网的研究。
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周文佳 在本刊中的所有文章 |
陈旿 在本刊中的所有文章 |
肖迪 在本刊中的所有文章 |
张鹏飞 在本刊中的所有文章 |
慕德俊 在本刊中的所有文章 |
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参考文献: |
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