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An Interval Algebra-based Modeling and Routing Method in Bus Delay Tolerant Network
( Haiquan Wang ),( Weijian Ma ),( Hengkun Shi ),( Chunhe Xia ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.4
In bus delay-tolerant networks, the route of bus is determinate but its arrival time is indeterminate. However, most conventional approaches predict future contact without considering its uncertainty, which makes a limitation on routing performance. A novel approach is proposed by employing interval algebra to characterize the contact`s uncertainty and time-varying nature. The contact is predicted by using the Bayesian estimation to achieve a better routing performance. Simulation results show that this approach achieves a good balance between delivery latency and delivery ratio.