Rendezvous layer protocols for Bluetooth-enabled smart devices
Personal and Ubiquitous Computing
The familiar stranger: anxiety, comfort, and play in public places
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Pocket switched networks and human mobility in conference environments
Proceedings of the 2005 ACM SIGCOMM workshop on Delay-tolerant networking
Reality mining: sensing complex social systems
Personal and Ubiquitous Computing
Exploring social context with the wireless rope
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part I
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
Instrumenting the city: developing methods for observing and understanding the digital cityscape
UbiComp'06 Proceedings of the 8th international conference on Ubiquitous Computing
CrowdWatch: enabling in-network crowd-sourcing
Proceedings of the second ACM SIGCOMM workshop on Mobile cloud computing
Towards proximity-based passenger sensing on public transport buses
Personal and Ubiquitous Computing
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People are frequently carrying their Bluetooth enabled mobile phones in their pockets while moving through public spaces. With only a small fraction of these being set to discoverable mode, it is possible to estimate the number of persons in proximity by conducting Bluetooth device inquiries. In this paper, we present a method for the measurement of the percentage of people with discoverable devices. We did experiments using this method in Bremen, Germany and San Francisco, US, suggesting that about 2%, respectively 6%, are detectable. Further, we show that this measurement can well be implemented on common mobile phones, and that specialized scanners are not necessary.