摘要
The optimization of network performance in a movement-assisted data gathering scheme was studied by analyzing the energy consumption of wireless sensor network with node uniform distribution. A theoretically analytical method for avoiding energy hole was proposed. It is proved that if the densities of sensor nodes working at the same time are alternate between dormancy and work with non-uniform node distribution. The efficiency of network can increase by several times and the residual energy of network is nearly zero when the network lifetime ends.
The optimization of network performance in a movement-assisted data gathering scheme was studied by analyzing the energy consumption of wireless sensor network with node uniform distribution. A theoretically analytical method for avoiding energy hole was proposed. It is proved that if the densities of sensor nodes working at the same time are alternate between dormancy and work with non-uniform node distribution. The efficiency of network can increase by several times and the residual energy of network is nearly zero when the network lifetime ends.
基金
Project(60873081)supported by the National Natural Science Foundation of China
Project(NCET-10-0787)supported by Program for New Century Excellent Talents in University
Project(11JJ1012)supported by the Natural Science Foundation of Hunan Province,China
关键词
网络节点
无线传感器
策略优化
移动基站
部署
剩余能量
传感器节点
网络性能
wireless sensor network
mobile base station
network optimization
energy consumption balancing
density ratio of sensor node
network lifetime
