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Sink Mobility based energy efficient algorithm to improve the network lifetime
Published in Institute of Electrical and Electronics Engineers Inc.
Pages: 185 - 189
A critical problem to gather data in Wireless Sensor Network (WSN) is energy hole. Sensor nodes transmit their data towards the static sink in a multi-hop manner. Sensor near the static sink contains all data of other sensors and its own data and thus it drains their energy very fast. So balancing energy throughout the network is important. Efficient utilization of energy is the main objective in WSN for maximization of a network's lifetime. For reducing the energy-hole problem in WSN a mobile sink approach is used. Mobility in WSN contains movement of the node around the network which consumes energy efficiently. However frequently changing the sink topology, determines the energy consumption. Moving the sink node is an effective solution for improving the lifetime of WSN. There are different methods in the literature schedule sink movements and determine sink stay points. Here the mobility of sink node can be considered based on distance of the Cluster Head (CH). Here mobile sink node checks the distance from the all CHs and moves the mobile sink to less distance CH. It also finds out the intersection points of two CHs. Depending on the intersection points mobile sink will move in between and collect data from the both CHs. Hence using this approach mobility will reduce and efficiently consumes more energy in network. © 2016 IEEE.