摘要
组播路由算法(Energy-Balanced Multicast Routing,EBMR)把无线传感器网络节点的剩余能量作为建立组播路由的重要因子,在不引入过长路径的同时优先选择剩余能量高的节点作为组播数据转发节点,构建组播能量平衡树(EB-Tree),从网络能量均衡消耗的角度来延长了无线传感器网络的生存时间。针对EBMR算法路由开销较大的问题,提出了k跳受限泛洪的能量平衡组播路由算法k-EBMR,控制组播路由报文在k跳范围内传播,并且研究了影响算法性能的关键因子的选取。仿真实验表明,与EBMR算法相比,k-EBMR算法较大程度上降低了路由控制报文的传输,提高了节点能量有效使用性,进一步延长了网络生存时间。
Using the residual energy of nodes as key metric for constructing multicast route,higher residual energy nodes will be selected by Energy-Balanced Multicast Routing(EBMR),meanwhile long route is not added to the energy-balanced tree(EB_Tree).EBMR can lower the energy consumption and extend the lifetime of network.To reduce the routing cost,k-hop constrained flooding energybalanced multicast routing algorithm(k-EBMR) is proposed in this paper.Join query packet is forwarded in k-hop area.The key factor of k-EBMR algorithm is discussed.Simulation results show k-EBMR can improve the effectiveness of energy consumption and extends the lifetime of network.
出处
《无线电通信技术》
2013年第4期40-42,46,共4页
Radio Communications Technology
关键词
无线传感器网络组播路由
受限泛洪
能耗均衡
网络生存时间
wireless sensor networks
multicast routing
constrained flooding
energy-balanced
network lifetime
作者简介
王芳芳(1986-),女,助理工程师。主要研究方向:无线传感器网络。