无线传感器网络分簇中能耗均衡控制方法仿真

Simulation of Energy Consumption Equalization Control Method in Wireless Sensor Network Clustering

为了提高无线传感器节点寿命、加强其抗干扰能力、减少能耗不均问题,提出了一种无线传感器网络分簇中能耗均衡控制方法。首先根据泊松分布的情况,通过数据传输半径计算得出节点度的期望值,因节点度与网络运行鲁棒性成正比例关系,所以可得知网络运行的效率。其次在簇头节点数量最优的基础上构建簇,并严谨的考虑节点的能量与位置关系,采用第一顺序无线电模型来表示能量模型。最后为了延长簇头的工作时间,通过备择簇头处理方法,增加备择簇头以减少重建簇的轮数,从而降低选举消耗的能量。仿真结果证明,所提方法可以有效的延长网络节点运行的周期,从而降低了传输数据的能量消耗,并且具有优质的鲁棒性。

In order to improve the lifetime of wireless sensor node,enhance the anti-interference ability and reduce the imbalanced energy consumption,this paper proposed a method to control the energy consumption equalization in clustering of wireless sensor networks.According to the Poisson distribution,the expected value of node degree was calculated by data transmission radius.Because the node degree was proportional to the robustness of network,the efficiency of network operation was obtained.Secondly,the cluster was constructed based on the optimal number of cluster head nodes.It was necessary to strictly consider the relationship between the node energy and node location,and the first-order radio model was used to represent the energy model.In order to prolong the working time of cluster head,alternative cluster head method was used to increase the alternative cluster head and reduce the round numbers of cluster reconstruction,so as to reduce the energy consumption of election.Simulation results show that the proposed method can effectively prolong the operation period of network node,thus reducing the energy consumption of transmission data.In addition,this method has high-quality robustness.