TurfCast: A service for controlling information dissemination in wireless networks

• Published in: 2012 Proceedings IEEE INFOCOM pp. 298 - 306
• Main Authors: Xinfeng Li, Jin Teng, Boying Zhang, Champion, A. C., Dong Xuan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.03.2012
• Subjects: Broadcasting; Decoding; Encoding; Mobile handsets; Receivers; Signal to noise ratio; Wireless networks
• ISBN: 9781467307734; 1467307734
• ISSN: 0743-166X; 2641-9874
• DOI: 10.1109/INFCOM.2012.6195744

Recent years have witnessed mass proliferation of mobile devices with rich wireless communication capabilities as well as emerging mobile device based information dissemination applications that leverage these capabilities. This paper proposes TurfCast, a novel information dissemination service that selectively broadcasts information in particular "turfs," abstract logical spaces in which receivers are situated. Such turfs can be temporal or spatial based on receivers' lingering time or physical areas, respectively. TurfCast has many applications such as electronic proximity advertising and mobile social networking. To enable TurfCast, we propose two supporting technologies: TurfCode and TurfBurst. TurfCode is a nested 0-1 fountain code that enables the broadcaster to transmit either all information or none at all to receivers. TurfBurst exploits the Shannon bound to differentiate among receivers: those who cannot receive information fast enough receive none at all, even if they linger near the broadcaster. We implement TurfCast on real-world devices and conduct experiments in both indoor and outdoor environments. Our experimental results illustrate TurfCast's potential for controlling information dissemination in wireless networks.