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Research Article Open Access
The application of wireless sensor network consists of a wide variety of circumstances such as environmental observation, intrusion detection, and battlefield surveillance. The network is composed of a significant number of nodes distributed in a different area in which not all nodes are directly connected. These nodes are equipped with limited with battery power and capable of wireless communication. Resource limitation has to be taken care while designing wireless sensor network infrastructure. In wireless sensor network how to conserve the limited power source to extend the network lifetime.In this paper we proposed a EASR(energy aware sink relocation) to extend the network life time which deals with the residual battery energy of each sensor nodes to adjust the transmission range and relocate the sink.