Improved Energy Lifetime of Integrated LEACH Protocol for Wireless Sensor Network

Wireless Sensor network (WSN) is widely used in many applications such as Defense, Agriculture, Road Transport and Highways, Healthcare, Shopping Malls. The usage of IoT devices has risen rapidly with the advancement of WSN techniques. WSN is the dominant techniques over low-cost, easy to use, scalability and portability. The major concern that arise with WSN are battery lifetime, energy consumption and short lifetime of sensor nodes. Hence, different routing network sensor protocols improve the ways of data aggregation and transmission to Base Station in the wireless sensor network. The Low Energy Adaptive Clustering Hierarchy (LEACH) is well used routing protocol based on hierarchical network flow. Researchers improves the traditional LEACH over years. In this work, traditional and integrated LEACH protocol are considered which integrated LEACH improves the threshold equation of sensor nodes for selecting cluster head. A* search algorithm is used with integrated LEACH protocol to form the tree of the sensor nodes that searches the shortest path for selecting the cluster head. This minimizes dead sensor nodes and improve the average energy residual of the sensor nodes. Using MATLAB application, simulation of the protocol is observed that finds 30 percent reduce the dead sensor nodes over integrated LEACH and improve average energy residual.