Maximum lifetime routing strategies for wireless sensor networks in coal mine

In WSNs´ application, the reduction of energy consumption and the entire network´s lifetime should be optimized and feasible communications are must be ensured. All of the above have become to be an important factor to evaluate the performance of routing protocols. In the paper, we present a feasible routing protocol for WSNs in coal mine. Here, we call it LEACH-mine. In the algorithm, the cluster formation not only considers the geographical position factor between the nodes but also integrates with the residual energy of nodes to reduce energy consumption. Moreover, in order to ensure nodes´ end-to-end reliable transmission in coal mine, minimum spanning tree algorithm is used to realize multi-hop communications. We simulate LEACH-mine in NS2 and compare it to LEACH. Simulation tests prove that LEACH-mine prolong the network lifetime.