NDLI: The telepathic phone: Frictionless activity recognition from WiFi-RSSI

Content Provider	IEEE Xplore Digital Library
Author	Sigg, S. Blanke, U. Troster, G.
Copyright Year	2014
Description	Author affiliation: Wearable Comput. Lab., ETH Zurich, Zurich, Switzerland (Blanke, U.; Troster, G.) \|\| Georg-August Univ. Goettingen, Gottingen, Germany (Sigg, S.)
Abstract	We investigate the use of WiFi Received Signal Strength Information (RSSI) at a mobile phone for the recognition of situations, activities and gestures. In particular, we propose a device-free and passive activity recognition system that does not require any device carried by the user and uses ambient signals. We discuss challenges and lessons learned for the design of such a system on a mobile phone and propose appropriate features to extract activity characteristics from RSSI. We demonstrate the feasibility of recognising activities, gestures and environmental situations from RSSI obtained by a mobile phone. The case studies were conducted over a period of about two months in which about 12 hours of continuous RSSI data was sampled, in two countries and with 11 participants in total. Results demonstrate the potential to utilise RSSI for the extension of the environmental perception of a mobile device as well as for the interaction with touch-free gestures. The system achieves an accuracy of 0.51 while distinguishing as many as 11 gestures and can reach 0.72 on average for four more disparate ones.
Sponsorship	IEEE Comput. Soc.
Starting Page	148
Ending Page	155
File Size	6802507
Page Count	8
File Format	PDF
ISBN	9781479934454
DOI	10.1109/PerCom.2014.6813955
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-24
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Accuracy Mobile handsets Sensors IEEE 802.11 Standards Monitoring Conferences Pervasive computing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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