Distributed probabilistic coverage-preserving configuration protocol for wireless sensor network

Coverage configuration is an effective method to alleviate the energy-limitation problem of sensor nodes in wireless sensor networks. Most of current researches were based on physical coverage model which is inconsistent with the realistic characteristic of signal propagation. Therefore, a distributed probabilistic coverage-preserving configuration protocol (DPCCP) was proposed. This protocol is based on probabilistic detection model and used Voronoi diagram to judge the probabilistic coverage degree on sensor nodes. In the simulation, LEACHE was presented by embedding DPCCP into LEACH seamlessly without any modification of the original workflow to validate the efficiency of the algorithem. Simulation results show that DPCCP can effectively reduce the number of active sensor nodes and prolong the network lifetime on the condition of coverage-preserving.