一种能耗均衡高效的无线传感器网络数据收集方案

A balanced and efficiency energy dissipation scheme of data gathering for Wireless Sensor Networks

无线传感器网络资源有限,传感器节点之间节点的能量消耗不均衡,使得整体网络生命周期缩短.针对无线传感器网络数据收集过程中能量消耗不均衡的问题,给出一种基于能耗均衡高效的数据收集算法.该算法将网络部署区域划分为大小不等的栅格,并根据节点剩余能量以及采用簇首轮换的方式,然后采用数据融合技术,可以有效提高节点能量消耗均衡度且可以大大延长网络寿命.仿真与性能分析结果表明:与典型数据收集算法相比,该算法在能耗均衡度和网络生命周期方面具有更好的性能.

Because Wireless Sensor Networks is the source limitation and the nodes consume the energy unbalanced,the lifetime of network will be reduced. To resolve the problem of unbalanced energy dissipation in the process of data gathering,an algorithm of data gathering based on balanced and efficiency energy dissipation is proposed. In the algorithm,the network arranged area is divided into rectangular grids with unequal size. According to the residual energy of nodes and the way of cluster rotate among the nodes of each grid respectively,and then using data fusion technology,this algorithm could prompt the balanced extent of energy dissipation and prolong the lifetime of the network by using the technology of data aggregation. The results of simulation and performance analysis shows that the algorithm is able to achieve better performance in aspects of balanced extent of energy dissipation and lifetime of network comparing with others typical algorithm of data gathering.