Energy efficient protocol for mobile Wireless Sensor Networks

In Wireless Sensor Network (WSN) energy is the main concern while designing a WSN protocol. Clustering is one of the process to minimize the energy consumption in WSN. Local election of clustering head (CH) requires many communications such as hello message, advertising their chances and fuzzy logic process requires many CPU cycles, high power microcontrollers, high capacity of memories which increase the cost and reduces amount of energy of the sensor nodes. To conserve the energy in WSN when node is near to the base station, direct communication is far better than clustering technique and when node is far away from the base station, clustering is better choice than direct communication. In this paper, both direct communication and clustering techniques are considered and fuzzy logic is used at base station to elect cluster head directly. Direct communication along with cluster head election using fuzzy logic technique have been adopted in this paper in order to amount of energy consumption. Proposed algorithm has been compared with LEACH and SEP protocol. Simulation results shows that this proposed algorithm performs better than LEACH and SEP in terms of energy saving as well as network lifetime for wireless sensor networks as well as for mobile communication.