Fuzzy and gravitational search based routing protocol for lifetime enhancement in wireless sensor networks

Abstract

In recent times, the demand for real-time multimedia applications is rapidly increased due to the increasing mobile users. Wireless Sensor Network (WSN) often suffers because of the overhead produced during message passing, constant energy and node cost. To provide solution to these issues, in this study, we propose Fuzzy and Gravitational Search Based Routing Protocol for Lifetime Enhancement in WSN. Gravitational Search Algorithm (GSA) is used for searching the paths. As GSA finds the global optimum faster, it has higher convergence rate. An improved routing technique is proposed for lifetime enhancement in WSN. For estimating the node cost using fuzzy logic, the parameters such as link quality and distance from the sink node, residual energy and load are used. Simulation results prove that the proposed protocol performs well compared to the existing protocols.