Efficient Data Caching Based On Fuzzy Decision Routing InVehicle Disruption Tolerant Networks
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2014, Vol 16, Issue 6
Abstract
Abstract: Disruption tolerant networks (DTNs) are characterized by low node density, unpredictable nodemobility, and lack of global network information. Most of current research efforts in DTNs focus on dataforwarding, but only limited work have been done on providing efficient data access to vehicle users. Theproposed Fuzzy Probabilistic Routing Protocol using History of Encounters and Transitivity (FPRoPHET)protocol uses an algorithm that attempts to exploit the non-randomness of real-world encounters by maintaininga set of probabilities for successful delivery to known destinations in the VDTN (delivery predictabilities) andreplicating messages during opportunistic encounters only if the Mule that does not have the message appearsto have a better chance of delivering it. Propose a novel approach to support fairness aware cooperativecaching scheme in VSNs (Vehicle Social Networks). Through capturing close friend set of each node, we cachedata prior at nodes which are overlapped by most nodes’ close friend sets. Proposed system develop anoptimization procedure to restrict the scope of caching nodes to satisfy the condition that there is at least onecommon node between caching node set and each node’s close friend set. By this mean, we minimize the numberof caching nodes while ensuring the fairness of each node at the same time. Extensive trace-driven simulationsshow that our approach significantly improves data access performance compared to existing schemes.
Authors and Affiliations
G. Menaka , Mr. Periyasamy
Keywords
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