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In wireless sensor networks (WSNs), to save the energy consumption of sensor nodes so that the network lifetime can be extended is an important issue. In this paper, we propose the PEGASIS topology architecture with the PBCA (phase-based coverage algorithm) to find the redundant nodes which can enter to sleep mode. Therefore, our proposed algorithm can reduce the energy consumption of nodes and extend the network lifetime. Simulation results show that the performances of our algorithm out performance the LEACH topology architecture, the PEGASIS topology architecture, and the LEACH with PBCA topology architecture in terms of energy consumptions, number of nodes alive, and sensing areas.
Date of Conference: 6-8 July 2011