Conference Proceedings

Optimization based self-localization for IoT wireless sensor networks

P Beuchat, H Hesse, A Domahidi, J Lygeros

2018 IEEE 4th World Forum on Internet of Things (WF-IoT) | Published : 2018

Abstract

In this paper we propose an embedded optimization framework for the simultaneous self-localization of all sensors in wireless sensor networks making use of range measurements from ultra-wideband (UWB) signals. Low-power UWB radios, which provide time-of-arrival measurements with decimeter accuracy over large distances, have been increasingly envisioned for realtime localization of IoT devices in GPS-denied environments and large sensor networks. In this work, we therefore explore different non-linear least-squares optimization problems to formulate the localization task based on UWB range measurements. We solve the resulting optimization problems directly using non-linear-programming algorit..

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