CCES: Coverage and Cluster-based Energy efficient Node Scheduling Scheme for Mobile Sensor Network

Scheduling the sensors active and sleep period is significantly important for achieving energy efficiency in resource constrained Wireless Sensor Networks (WSNs). Most existing node scheduling schemes consider only the energy efficiency of sensor nodes and cannot be used for mobility-centric applications since they are designed for static network topology. Though a few node scheduling schemes are designed to support sensors mobility they cannot guarantee network coverage. Thus, this paper introduces Coverage and Cluster-based Energy efficient Node Scheduling (CCES) scheme for Mobile WSN, which achieves energy efficiency by selecting a minimum number of active nodes in each cluster and increases the probability of having no sensing hole in the network while supporting mobility of sensor nodes. Simulation results show that CCES scheduling scheme has lower network energy consumptions, and higher network lifetime in terms of the remaining network energy and the rounds when the first node fails as compared to an existing Cluster-based Coverage preserved Node Scheduling (CCNS) scheme.