A Range-Based Adaptive and Collaborative Localization for Wireless Sensor Networks

Wireless sensor networks (WSNs) have many applications in almost all walks of life. Most of the applications expects data gathered from sensor nodes to be reported to a base station node along with position where the data were recorded. Geographic routing protocols are a class of very prominent routing protocol which expects position of sensor nodes to be known. Localization in WSN becomes an integral part of the deployment. Several techniques ranging from GPS to range based to range free localization is available. Most of them are either not accurate enough or they are expensive in nature. A range based, collaborative localization technique is proposed in this paper which works without any specialized hardware. Simulation and experiments show the proposed algorithm performs reasonably well in terms of accuracy and without any localization overhead.