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A need exists for localisation algorithms in Wireless Sensor Networks (WSNs) that are scalable, energy efficient and able to function in easy to deploy sensor networks. This paper proposes a beaconless Cluster-based Radial Coordinate Establishment (CRCE) positioning algorithm to locate sensor nodes relative to a local coordinate system. The system does not make use of Global Positioning System (GPS) or any other method to provide a-priori positioning information for a set of nodes prior to the CRCE process. The objective is to reduce energy consumption while providing a scalable coordinate establishment method by focussing on the minimisation of message exchanges in a WSN.

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Format:PDFSize:423 KB
Date:Jan 2008
Pages:9

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