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针对无线传感器网络分簇算法中簇首负载不均衡的问题,提出了基于簇首优化的无线传感器网络负载均衡路由算法.算法首先采用一阶无线传输模型计算最优分簇数目,然后通过模糊算法根据节点剩余能量和节点与基站距离等因素计算节点竞争力,根据节点竞争力采用非均匀分簇方法进行簇首选择;通过节点竞争力和节点能量管理机制相互协作决定最优簇首节点;根据传输能耗、剩余能量和传输距离等影响因素采用簇间连通算法进行簇间多跳路径选择.实验结果表明,该算法与LEACH算法和UCDP算法相比,能较均衡的分配负载,有效延长无线传感器网络的生存周期.
Aiming at the problem of uneven cluster head load in wireless sensor network clustering algorithm, a cluster-head optimization based load balancing routing algorithm for wireless sensor networks is proposed. The algorithm first uses the first-order wireless transmission model to calculate the optimal clustering number, The node’s competitiveness is calculated according to the residual energy of the node and the distance between the node and the base station, and the cluster heads are selected by non-uniform clustering method according to the node’s competitiveness. The first node of the optimal cluster is determined by the node competitiveness and the node energy management mechanism. Transmission energy consumption, residual energy and transmission distance, etc. Inter-cluster connectivity algorithm is used to select multi-hop paths between clusters.Experimental results show that compared with LEACH algorithm and UCDP algorithm, this algorithm can distribute load more evenly and effectively extend wireless Sensor network life cycle.