Deployment of a wireless sensor network in the presence of obstacle and its performance evaluation

Abstract

Energy consumption of a wireless sensor network plays an important role in determining the lifetime of a network. Lifetime of any network is the total number of rounds it completes before the failure of a certain number of nodes. In harsh and inaccessible environments, the aerial deployment is done instead of manual deployment of nodes. In this process, some of the nodes are not properly deployed while some get wasted. Here, the fifty percent nodes die out time is taken as the lifetime of the network. The wastage of nodes considerably affect lifetime of the network. The main focus of the paper is on network deployment algorithms in presence of obstacles. Further, the effect of probabilities of selection of a node as cluster head, size of the obstacles and position of obstacles on the lifetime has been considered for evaluation.