摘要
传统无线传感器网络的多跳传输会在靠近sink节点的位置出现能量空洞,证明在异构无线多媒体网络中,传感器能量空洞会出现在网络的任何位置,并提出基于负载均衡的节点布局方法来避免能量空洞。在进行节点能耗分析时综合考虑了节点数据收发能耗、数据处理能耗以及数据压缩比,详细讨论并证明数据处理能耗对节点布局的影响,提出数据处理收益的概念。仿真结果显示,利用所提出的方法进行节点布局,能够提高网络能量利用率,延长网络生存周期。
Multiple hop transmission in wireless sensor networks（WSN） would bring the energy hole problem near the sink. It proved that the energy hole problem would appear in any position in heterogeneous wireless multimedia sensor networks and propose a method of the node distribution based on load balancing to solve the problem. The energy consumption was analyzed on the basis of considering the data compression ratio and the energy consumed for data transmission and processing. It proved that in heterogeneous WMSN the energy consumption of data processing would affect the node distribution and define a word that profit of data processing. The simulation results show that the energy utilization rate and the survival time of the network can be effectively improved by using the method proposed.
出处
《通信学报》
EI
CSCD
北大核心
2015年第10期157-164,共8页
Journal on Communications
基金
国家科技支撑计划基金资助项目(2012BAH27B04
2012BAH12B01)~~
