A Novel Technique for Energy Optimization and Restoration of Connectivity in Wireless Sensor Networks

Abstract

In applications of wireless sensor network, especially those attending in hostile environments such as reconnaissance in battlefield, are vulnerable to significant damage due to which single, multiple or simultaneous sensor nodes failure may occur and acquires the wireless sensor network separated into several partitions. The rapid recovery of partition network is essential for inter-node connectivity. Recently, number of approaches proposed for the restoration of inter-node connectivity. However, these approaches have not considered the efficient use of energy, coverage aware and connectivity restoration in integrated manners. This paper fills the gap in integrated manner. A novel technique for different cases of nodes failure is proposed. Initially, sensor nodes are very densely deployed and whole network is relocating after the deployment that each node relocates its position in half of the communication range of neighbor node. The effectiveness of proposed algorithm has been proved by simulation results.