Mobility increases the capacity of ad hoc wireless networks
IEEE/ACM Transactions on Networking (TON)
Age matters: efficient route discovery in mobile ad hoc networks using encounter ages
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
The message delay in mobile ad hoc networks
Performance Evaluation - Performance 2005
Crossing over the bounded domain: from exponential to power-law inter-meeting time in MANET
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Power law and exponential decay of inter contact times between mobile devices
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Diversity of forwarding paths in pocket switched networks
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
Characterizing pairwise inter-contact patterns in delay tolerant networks
Proceedings of the 1st international conference on Autonomic computing and communication systems
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Understanding device pair's contacts is essential in pocket switched networks (PSN). However, most of the studies on this issue are focused on the empirical distribution aggregating inter-contact times from all the device pairs, and seeking to find common characteristics of their contact processes. In this paper, we present an insightful analysis on both the aggregated and the pair-wise inter-contact times obtained from three real-world datasets. We find that device pairs are heterogeneous in many aspects, including not only their contact frequencies, but also their contact patterns. More surprisingly, even for those frequently contacting pairs, their behaviors are diverse, and could not be described with a universal model. Finally, implication of the observed heterogeneity on PSN's message forwarding algorithm is discussed, and we show that with the awareness of the device pair's heterogeneous contact pattern, the network's message relaying service could be improved considerably.