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Recent research in opportunistic networks addresses the diffusion policy and the practicality considerations in utilizing device-specific applications. Intermittent connectivity between mobile nodes and the random behavioral patterns of the users, make modeling and measuring the performance of opportunistic networks very challenging particularly in the case of file/object sharing among these devices. As the cache-and-forward replication policy plays a major role targeting the availability of requested resources, there should be a mechanism for controlling the minimization of the redundant replicas and the uncontrolled diffusion effects onto the communicating nodes.
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