链路可靠的无线传感器网络组播路由协议  

Reliable Link Multicast Routing Protocol for Wireless Sensor Networks

作　　者：宋震[1] 周贤伟[2] 林亮[2] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073 [2]北京科技大学信息工程学院,北京107083

出　　处：《电子学报》2008年第1期64-69,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60573050);国家863高技术研究发展计划(No.2007AA01Z213)

摘　　要：在无线传感器网络实际应用中,组播正在发挥着越来越重要的作用.但由于能量等多方面的因素,使得为无线传感器网络设计一个有效的组播路由是非常困难的.针对无线传感器网络中节点的能量限制,通过寻求节点间最短路径,提出一种能量有效的链路可靠组播路由协议(RLMR).该协议充分考虑到网络中节点的能耗因素和两节点间的链路可靠性等,通过对这两个因素的综合考虑,让能量较多并且以发送节点更靠近的节点承担更多传输任务的方式,为数据流优化路由选择,均衡无线传感器网络节点的能量消耗,以延长网络的生存时间.仿真结果证明了RLMR的有效性和可靠性.In the applications of wireless sensor networks, multicast plays a very important role. In both military and civil domain, we usually need the multicast support. It is very hard to design an efficient multicast protocol for wireless sensor networks, because many factors have to be taken in consideration, such as the energy which is a vital factor for wireless sensor networks. Aimed at the restricted energy in wireless sensor network, a reliable link multicast routing（RLMR） protocol by finding the shortest path between two nodes is proposed in this paper. The energy of nodes and the link reliability between two nodes are considered in RLMR. Two factors are deemed as the link reliability indexes, As the more energy and nearer nodes take on more transmission tasks,the data stream route option is optimized, the energy consume of nodes is balance and the network life periods is extended, The simulation proves the validity of Reliable Link Multicast Routing protocol. The multicast in RLMR becomes more reliable.

关 键 词：无线传感器网络 节点能量 最短路径 组播 组播树 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]