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Robust occupancy inference with commodity WiFi
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Lu, Xiaoxuan, Wen, Hongkai, Zou, Han, Jiang, Hao, Xie, Lihua and Trigoni, Niki (2016) Robust occupancy inference with commodity WiFi. In: IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), New York City, USA, 17-19 Oct 2016. Published in: IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)
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Abstract
Accurate occupancy information of indoor environments is one of the key prerequisites for many pervasive and context-aware services, e.g. smart building/home systems. some of the existing occupancy inference systems can achieve impressive accuracy, but they either require labour-intensive calibration phases, or need to install bespoke hardware such as CCTV cameras, which are privacy-intrusive by default. in this paper, we present the design and implementation of a practical end-to-end occupancy inference system, which requires minimum user effort, and is able to infer room-level occupancy accurately with commodity wifi infrastructure. depending on the needs of different occupancy information subscribers, our system is flexible enough to switch between snapshot estimation mode and continuous inference mode, to trade estimation accuracy for delay and communication cost. we evaluate the system on a hardware testbed deployed in a 600m 2 workspace with 25 occupants for 6 weeks. experimental results show that the proposed system significantly outperforms competing systems in both inference accuracy and robustness.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Library of Congress Subject Headings (LCSH): | Intelligent buildings, Home automation, Wireless LANs , Facility management | ||||
Journal or Publication Title: | IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) | ||||
Publisher: | IEEE | ||||
Official Date: | 31 July 2016 | ||||
Dates: |
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Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Date of first compliant deposit: | 27 October 2016 | ||||
Date of first compliant Open Access: | 28 October 2016 | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC), National Research Foundation (Singapore) (NRF), Berkeley Education Alliance for Research in Singapore (BEARS) | ||||
Grant number: | EP/J012017/1, EP/L00416X/1 (EPSRC), NRF2013EWT-EIRP04-012, NRF2011NRF-CRP001-090 (NRF), SinBerBEST Program (BEARS) | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) | ||||
Type of Event: | Conference | ||||
Location of Event: | New York City, USA | ||||
Date(s) of Event: | 17-19 Oct 2016 | ||||
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