IPTPS '01 Revised Papers from the First International Workshop on Peer-to-Peer Systems
Wi-Fi in Ad Hoc Mode: A Measurement Study
PERCOM '04 Proceedings of the Second IEEE International Conference on Pervasive Computing and Communications (PerCom'04)
Digital graffiti: public annotation of multimedia content
CHI '04 Extended Abstracts on Human Factors in Computing Systems
Measurements of In-Motion 802.11 Networking
WMCSA '06 Proceedings of the Seventh IEEE Workshop on Mobile Computing Systems & Applications
Opportunistic spatio-temporal dissemination system for vehicular networks
Proceedings of the 1st international MobiSys workshop on Mobile opportunistic networking
Applicability of identity-based cryptography for disruption-tolerant networking
Proceedings of the 1st international MobiSys workshop on Mobile opportunistic networking
ACM SIGMOBILE Mobile Computing and Communications Review
Bubble rap: social-based forwarding in delay tolerant networks
Proceedings of the 9th ACM international symposium on Mobile ad hoc networking and computing
Multicasting in delay tolerant networks: a social network perspective
Proceedings of the tenth ACM international symposium on Mobile ad hoc networking and computing
The ONE simulator for DTN protocol evaluation
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
Assessing the VANET's local information storage capability under different traffic mobility
INFOCOM'10 Proceedings of the 29th conference on Information communications
A mobile peer-to-peer system for opportunistic content-centric networking
Proceedings of the second ACM SIGCOMM workshop on Networking, systems, and applications on mobile handhelds
Locus: a location-based data overlay for disruption-tolerant networks
Proceedings of the 5th ACM workshop on Challenged networks
Floating content: Information sharing in urban areas
PERCOM '11 Proceedings of the 2011 IEEE International Conference on Pervasive Computing and Communications
PERCOM '11 Proceedings of the 2011 IEEE International Conference on Pervasive Computing and Communications
Ego network models for Future Internet social networking environments
Computer Communications
Extrapolating sparse large-scale GPS traces for contact evaluation
Proceedings of the 5th ACM workshop on HotPlanet
Evaluating (Geo) content sharing with the ONE simulator
Proceedings of the 11th ACM international symposium on Mobility management and wireless access
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People are increasingly using online social networks for maintaining contact with friends and colleagues irrespective of their physical location. While such services are essential to overcome distances, using infrastructure services for location-based services may not be desirable. In contrast, we design and analyze a fully distributed variant of an ephemeral content sharing service, solely dependent on the mobile devices in the vicinity using principles of opportunistic networking. The result is a best effort service for floating content in which content is created locally, its availability is geographically limited and its lifetime and spreading depends on interested nodes being available. In this paper, we present our system design, algorithms, and protocol specification in detail. A set of real world experiments is then used to assess the achievable transmission rates and transmission ranges in such a system. We validate our previous analytical results and assess the performance of floating content in general and especially of different replication and deletion strategies by means of extensive simulations using a map-based mobility model in downtown Helsinki.