An Efficient Power and Coverage Algorithm in WSNs

An efficient power and coverage algorithm called EPCA is proposed that puts redundant sensor nodes to sleep mode to save energy while maintain the sensing field covered. EPCA includes three algorithms: the node checking algorithm, the blind point avoidance algorithm and the sleeping nodes turning on algorithm. Detailed simulation results and compared to existed schemes prove the proposed EPCA algorithm not only guarantees the network is fully covered at least k level of coverage, but also prolongs network lifetime.