Multi-Hop Routing Based on LEACH in WSN

In wireless sensor networks, if the cluster head node is too far away from the sink node, it will generate large transmission energy consumption, leading to premature death of the node and reducing the overall network life. In this paper, based on the LEACH cluster routing algorithm, an inter-cluster multi-hop network energy optimization algorithm is proposed-MRLW (Multi-hop Routing based on LEACH in WSN). After dividing the clusters, the node performance evaluation function is constructed through the energy consumption and residual energy of the cluster head nodes; then, the optimal path finding system is constructed; finally, the optimal transmission path of each cluster head node is calculated using convex optimization, which achieves the effect of decreasing the energy consumption of data transmission and prolonging the life of the network. Simulation results show that the proposed MRLW algorithm reduces energy consumption and extends the sensor network's lifetime.