Abstract: “Wireless sensor network is basically composed of large number of sensor nodes and a base station. The sensor nodes usually are irreplaceable and powered by limited power supply. Taking the fact into consideration, a network should operate with minimum energy as possible to increase lifetime of network for improving the overall energy efficiency. In this work, we proposed a protocol for mobile base station using Genetic Algorithms to find optimal position for base station from predetermined location of base station. The predetermined locations of base station are from three mobility patterns for the base station; random, grid and circle mobility patterns. Simulation results have shown that the normalized network lifetime using grid mobility pattern are higher than random and circle mobility patterns.”

Keywords: sensor node; mobile base station; Genetic Algorithms; network