ENERGY ASSIGNMENT TO PROLONG THE LIFETIME IN HETEROGENEOUS WIRELESS SENSOR NETWORK

摘要：

This paper focuses on prolonging the sensor network lifetime by assigning the sensor nodes with initial energy properly in the heterogeneous wireless sensor network. The initial energy assignment (IEA) strategy is proposed either the total initial energy is limited or unlimited. The location and energy level of sensors are given to optimize the load balance and prolong the network lifetime. When the total available energy of all the nodes is limited, the network life is 92％ longer using the IEA strategy than using the uniform initial energy assignment strategy; when the total energy of all nodes is unlimited, the network lifetime on the IEA strategy will increase about 12 times longer than on the uniform energy allocation. The numerical approximation for the IEA strategy is presented in this paper, and the nodes density and the radius of deployment are also discussed to maximize the network lifetime.

关键词： Network lifetime Heterogeneous network Nodes placement Energy balance Energy assignment

作者: LI-JIE REN ZHONG-WEN GUO REN-ZHONG MA

作者单位: Department of Computer Science, Ocean University of China, Qingdao, Shandong, 266100, China

会议类型: 国际会议

会议名称: 2008 International Conference on Machine Learning and Cybernetics(2008机器学习与控制论国际会议)

会议地点: 昆明

会议语种:英文

页码: 4057-4061

在线出版日期: 2008-07-12（万方平台首次上网日期，不代表论文的发表时间）