Crowd sensing in indoor areas is becoming more and more fundamental for flow management, security and surveillance, or building usage statistics. This paper deals with a simple crowd sensing approach, which opportunistically exploits the already deployed WiFi networks, thus avoiding dedicated wiring and installations. The proposed algorithm is based on a two-step procedure that first applies a Wavelet decomposition of the signal strength data and then exploits the obtained coefficients to learn the unknown relation between crowd presence and signal changes. To this end, a customized learning-by-example (LBE) algorithm is trained for successive real-time crowd detection. The results of the experimental validation are presented to assess system potentialities and current limitations.
Opportunistic crowd sensing in WiFi-enabled indoor areas / Robol, Fabrizio; Viani, Federico; Polo, Alessandro; Giarola, Enrico; Garofalo, Paola; Zambiasi, Cristian; Massa, Andrea. - STAMPA. - (2015), pp. 274-275. ((Intervento presentato al convegno Proc. 2015 IEEE AP-S tenutosi a Vancouver nel July 19-25, 2015 [10.1109/APS.2015.7304523].
Titolo: | Opportunistic crowd sensing in WiFi-enabled indoor areas | |
Autori: | Robol, Fabrizio; Viani, Federico; Polo, Alessandro; Giarola, Enrico; Garofalo, Paola; Zambiasi, Cristian; Massa, Andrea | |
Autori Unitn: | ||
Titolo del volume contenente il saggio: | 2015 IEEE Antennas and Propagation Society International Symposium Proceedings | |
Luogo di edizione: | Piscataway, NJ | |
Casa editrice: | IEEE | |
Anno di pubblicazione: | 2015 | |
Codice identificativo Scopus: | 2-s2.0-84953721824 | |
Codice identificativo WOS: | WOS:000371401400134 | |
ISBN: | 978-1-4799-7815-1 | |
Handle: | http://hdl.handle.net/11572/120095 | |
Citazione: | Opportunistic crowd sensing in WiFi-enabled indoor areas / Robol, Fabrizio; Viani, Federico; Polo, Alessandro; Giarola, Enrico; Garofalo, Paola; Zambiasi, Cristian; Massa, Andrea. - STAMPA. - (2015), pp. 274-275. ((Intervento presentato al convegno Proc. 2015 IEEE AP-S tenutosi a Vancouver nel July 19-25, 2015 [10.1109/APS.2015.7304523]. | |
Appare nelle tipologie: | 04.1 Saggio in atti di convegno (Paper in Proceedings) |
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