Home // SENSORCOMM 2013, The Seventh International Conference on Sensor Technologies and Applications // View article

Anchor-free Localization in Wireless Lamp Networks using Superimposed RSSI Measurements

Authors:
Alexandru Caracas
Thomas Eirich
Thorsten Kramp
Marcus Oestreicher
Moritz Hoffman
Claudio Gargiulo
Gabor Soros

Keywords: RSSI-based localization, multi-antenna, multi-channel, wireless lighting

Abstract:
Localization is a crucial aspect in providing context-aware services and applications. Existing approaches often require a fixed infrastructure or specialized hardware, providing varying degrees of accuracy. For certain application scenarios, high accuracy is not required, if the objects to localize are fixed or slowly moving. For such relatively static scenarios, we propose a novel RSSI-based localization technique using multiple antennas and multiple channels in the 2.4 GHz band. As a concrete application, we present a wireless lighting control system for office lamps in an Internet of Things (IoT) scenario. The lamps participate in a wireless sensor network (WSN) and cooperatively adjust the ambient light based on the self-determined topology correlated with occupancy information. Our experimental results show that we are able to achieve an accuracy of 2m in 93% of distance estimates with cost-effective IoT technology, improving existing results by 1m.

Pages: 69 to 74

Copyright: Copyright (c) IARIA, 2013

Publication date: August 25, 2013

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-296-7

Location: Barcelona, Spain

Dates: from August 25, 2013 to August 31, 2013