摘要
无线传感器网络中多对一的数据传输方式导致节点负载的不均衡性,靠近汇聚节点(Sink)的节点要比远离Sink的节点消耗更多的能量,如此容易引发能量空洞问题。针对该问题,从网络数据的传递路径出发,根据网络中节点承担的路径数量的不同,平衡各层节点的能耗,提出感知节点覆盖率一致、内层路由节点与其所有外层感知节点数目相同的的非均匀分布策略,并通过仿真实验证明了该方法的有效性。
The unbalanced load among sensors in wireless sensor networks is caused by many-to-one way of data transmission.The nodes near Sink will spend more energy than those far away from Sink,and then the energy hole is caused in sensor networks.According the paths of data transmission and the nodes undertaking the different number of paths,the energy consumption of different layers node is balanced.The non-uniform sensor deployment strategy,which number of routing node in an inner is equal to number of sensing node in outer tiers farther away from Sink,while the fraction of coverge of sensing node in all the coverage area is the same,is presented.The simulation results show that the non-uniform sensor deployment strategy is feasible.
出处
《传感器与微系统》
CSCD
北大核心
2012年第4期14-16,19,共4页
Transducer and Microsystem Technologies
关键词
无线传感器网络
能量空洞
路径
非均匀分布
wireless sensor networks（WSNs）
energy hole
paths
non-uniform deployment
