A platform for radio location research in Ad Hoc and sensor networks

Accurate and low-cost localisation is an essential requirement in many sensor and ad hoc network applications. This paper presents a platform, both hardware and software, that has been developed as a flexible tool for research in ubiquitous localisation in applications such as emergency services. The system has also been designed to be small and with sufficiently long battery life to be suitable for field trials in a range of applications.