Dissemination of spatial-temporal information in mobile networks with hotspots
DBISP2P'04 Proceedings of the Second international conference on Databases, Information Systems, and Peer-to-Peer Computing
Opportunistic data dissemination in mobile peer-to-peer networks
SSTD'05 Proceedings of the 9th international conference on Advances in Spatial and Temporal Databases
Spatio-temporal matching algorithms for road networks
Proceedings of the 20th International Conference on Advances in Geographic Information Systems
Local information storage protocol for urban vehicular networks
WASA'13 Proceedings of the 8th international conference on Wireless Algorithms, Systems, and Applications
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In this paper we examine the dissemination of availability reports about resources in mobile peer-to-peer networks,where vehicles, pedestrian or sensors communicate with each othervia short-range wireless transmission. Each disseminated report represents information about a spatial-temporal event, such as the availability of a parking slot at a particular time or the detection of an injured in an earthquake damaged building. We propose an opportunistic dissemination paradigm, in which a moving object transmits the reports it carries to encountered objects and obtains new reports in exchange. Least relevant reports are discarded after each exchange such as to limit the communication data volume of future exchanges. We analyze by simulations the information accuracy provided by this approach. We also develop and analyze a method to determining the optimal size of the local reports database at a moving object such that a certain accuracy level is reached. The proposed system has the potential to create a completely new information marketplace.