Mobility

On Proximity-Based Range-Free Node Localisation in Wireless Sensor Networks

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Executive Summary

Recent advances in Wireless Sensor Network (WSN) technology have enabled deployment of sensor networks in numerous applications, ranging from medical and environmental monitoring to detection and tracking of intruders. Localisation of sensor nodes of a wireless sensor network is an essential prerequisite for its successful operation. However, localisation in WSNs is often constrained by the low cost, low energy and configuration requirements. Thus, it is unreasonable to expect that every sensor node can be equipped with a GPS receiver (a GPS receiver is large, heavy and expensive, as opposed to a sensor node which is supposed to be small, light and cheap).

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