Secure energy-efficient clustering protocol for wireless sensor network

Abstract

Every operation in wireless sensor network requires energy. So energy conservation is a major problem in WSN. As a solution for this problem, a joint optimization between medium access control and network layers can be done using received signal strength as a cross-layer parameter. A special kind of clustering is used for cluster formation, wherein each sensor node calculates its received signal strength from the base station. This parameter also considered for new cluster head selection. Moreover, security is also provided for data protection. Using an NS2 simulator, it is demonstrated that this cross-layer optimization reduces energy consumption and delay and increases network throughput and packet delivery ratio as compared with the existing method.