Energy aware modified PEGASIS through packet transmission in wireless sensor network

Network lifetime is the prime factor in wireless sensor networks which consists nodes with limited energy. Gathering information efficiently in critical situation in sensor network for a long period of time is required efficient protocols. The LEACH (Lower-Energy Adaptive Clustering Hierarchy) and PEGASIS (Power-Efficient Gathering in Sensor Information Systems) protocols are perfect solutions to this problem which minimize the overall energy dissipation by the nodes in the network. The LEACH protocol randomizes cluster heads for achieve equal energy dissemination, whereas the PEGASIS protocol forms a chain of cluster heads taking rounds in transmitting to the base station. In this paper, we propose an energy efficient protocol which enhances the performance of PEGASIS. In Modified PEGASIS, each node communicates only with a close neighbor node with minimum distance and transmits data to the base station, thus reducing the amount of energy spent per round. For this protocol it will combine few parameters such as Distance and Residual Energy for each node. The proposed system will increase the overall communication and increase the network life. Simulation results show that Modified PEGASIS performs better than PEGASIS, LEACH-C, and LEACH.