移动Ad Hoc网络中基于链路稳定性预测的组播路由协议  

A Link Stability Prediction-Based Multicast Routing Protocol in Mobile Ad Hoc Networks

作　　者：夏辉[1] 贾智平[1] 张志勇[1] Edwin H-M Sha 

机构地区：[1]山东大学计算机科学与技术学院,济南250101 [2]美国德州大学达拉斯分校计算机科学系,美国德克萨斯理查森75083

出　　处：《计算机学报》2013年第5期926-936,共11页Chinese Journal of Computers

基　　金：美国国家科学基金项目(CSR-1015802);中国千人才计划;国家自然科学基金项目(61070022);国家自然科学基金委员会青年科学基金项目(60903031,61202015);山东省自然科学基金项目(ZR2010FM015,ZR2011FQ036)资助~~

摘　　要：节点的随机移动性导致了移动自组织网络拓扑的动态变化,进而增加了重路由的频率,降低了网络通信性能.选择稳定性较高的路径进行路由,能够有效地降低重路由的频率,延长路由的生存时间.基于接收到的数据分组的信号强度,文中提出一种新颖的链路稳定性预测模型,并将其应用于传统组播路由协议中.仿真结果验证了预测机制的有效性,扩展协议LSPMR(Link Stability Prediction-based Multicast Routing Protocol)能够显著地提高分组投递率,降低分组端到端平均传输延时,且控制开销较小.Mobile Ad Hoc networks have dynamic topology since all nodes have a random mobility behavior which increases rerouting frequency and degrades network communication performance. A more stable route can reduce rerouting frequency and prolong route lifetime. In this paper, we propose a novel link stability prediction model, via sampling the signal strength of the received data packets, and integrate the proposed prediction model into the traditional muhicast routing protocol. Simulation results have been conducted to verify the efficiency of the proposed predic- tion scheme. Moreover, with a lower control overhead, this extended protocol LSPMR （Link Stability Prediction-based Multicast Routing Protocol） achieves a remarkable improvement in the packet delivery ratio, and decreases the average end-to-end delay.

关 键 词：移动自组织网络 稳定路径 信号强度 组播路由协议 分组投递率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]