Localization of Sensors by Base Station in Wireless Sensor Networks

Abstract

Sensors in a Wireless Sensor Network are typically deployed at random. In order to establish the network, the position of the sensors is required to be localized. Once this activity is complete, a routing algorithm is used to establish the network. Whilst many methods have been contemplated in the past, this paper presents a method to find the exact location of sensors using Received Signal Strength Indicator (RSSI) values coupled with triangulation techniques. Further, these computations can be undertaken by the base station thereby reducing considerable energy and computational overheads for an otherwise resource hungry wireless sensor network.