Set k-cover algorithms for energy efficient monitoring in wireless sensor networks
Proceedings of the 3rd international symposium on Information processing in sensor networks
IEEE Transactions on Mobile Computing
Distributed Deployment Schemes for Mobile Wireless Sensor Networks to Ensure Multilevel Coverage
IEEE Transactions on Parallel and Distributed Systems
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Wireless Sensor Network (WSN) consists of autonomous sensors distributed to monitor different environmental or physical phenomena and communicate the gathered data efficiently. Ensuring coverage and connectivity with minimum redundancy is important for WSNs. To ensure coverage and connectivity we assume that the sensors are deployed randomly within the field of interest. By minimizing redundancy, network lifetime can be increased while maintaining the minimum level of coverage and connectivity required. In this paper we develop a sleep protocol that can be added to the existing MAC protocol to prolong the network lifetime in an efficient manner. We take different levels of coverage and connectivity in our simulation study of network lifetime. We compare the performance of our sleep protocol with some existing protocols.