一种主动均衡节点能耗的无线传感器网络拓扑控制算法

A Topology Control Algorithm of Wireless Sensor Networks Based on Active Balance of the Energy Expenditure

无线传感器网络中网络拓扑的动态调整对于提高路由协议和MAC协议的效率,延长网络的生存期,提高网络通信效率等方面具有重要的作用。本文在分析了一些拓扑控制算法的基础上,提出了一种新的层次型拓扑生成算法,该算法引入了时间门限值和节点剩余能量两个参数,在解决能耗不均衡问题上采取相对主动的方法,能够有效地均衡网络节点的能耗并延长网络的生存周期。

Frequent topology changes in wireless sensor network has important significance in improving efficiency of routing protocols and MAC protocol, prolonging the survival time of network and raising the efficience of communication. Based on systematic analysis some topology control algorithms, a new hiberarchical topologically generating algorithm is put forwarded in this paper, two parameters-time threshold and energy of node left are introduced and a relatively positive attitude is taken to solve imbalance energy consumption of nodes. The algorithm effectively balances the energy consumption and achieves an obvious improvement on the survival time of network.