无线传感器网络LEACH协议分簇算法改进研究

An improved clustering algorithm based on LEACH protocol in WSN

对于节点分布不均匀的无线传感器网络,研究其节点能量的均衡消耗和网络寿命的延长问题.在LEACH协议分簇算法基础上,针对节点分布不均匀情形,由理想的簇节点数来控制分簇的通信半径,并以节点当前的剩余能量以及离基站的距离作为它成为簇首的随机数值的调整权值,得到了一种新的分簇算法.仿真实验结果表明,该算法有效均衡了节点的能量消耗,并显著延长了网络寿命.

A research on balancing the energy consumption of network nodes and prolonging the network lifetime is conducted for the uneven distribution of nodes in wireless sensor networks. A new clustering algorithm is presented on the basis of the LEACH protocol. On account of the uneven distributed nodes, the radius of cluster communication is controlled by the number of ideal cluster nodes, and the current residual energy of a node and its distance from the base station determine the weights of the random number when it acts as the cluster head. The simulation results show that the nodes energy consumption is effectively balanced and the network lifetime is significantly extended by the algorithm presented.