Fig. 17From: Cluster tree topology construction method based on PSO algorithm to prolong the lifetime of ZigBee wireless sensor networksComparison of remaining energy distribution map. This figure shows the distribution map of the energy consumption of the network constructed by the proposed reconstruction method, where a corresponds to the topology construction method using PSO algorithm and reconstruction method with fixed threshold; b corresponds to the topology construction method using PSO algorithm and reconstruction method with variable thresholdBack to article page