Cluster-Based Energy-Aware Localization Algorithm for Wireless Sensor Networks

Energy efficiency has become a main challenge in Wireless Sensor Networks (WSNs) and their applications. Localization is one of the indispensable stages in WSN. Localization generally refers to the process of locating the position of one or more node(s) in a network. This paper develops and evaluates an improved energy aware localization algorithm in WSNs. Clustering techniques have been intensively presented in the literature as energy efficient techniques. The proposed approach enhances the AlWadHA localization algorithm by integrating it with the DUCA clustering scheme in order to save the energy and consequently prolonging the WSN life time. The proposed algorithm is implemented using the Castalia 3.2/OMNet++ WSN simulator. The experimental results indicate that the proposed technique maintains the same level of localization accuracy of the AlWadHA algorithm while reducing the energy consumption of the network.