Store-and-Forward Performance in a Disruption Tolerant Network

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Mooi Choo Chuah, Peng Yang, Brian D. Davison, and Liang Cheng

Delay and disruption tolerant networks have been proposed to address data communication challenges in network scenarios where an instantaneous end-to-end path between a source and destination may not exist, and the links between nodes may be opportunistic, predictably connectable, or periodically-(dis)connected. In this paper, we discuss how mobility management in DTN (delay-/disruption-tolerant networks) environments can be handled. We present preliminary simulation results on how the store-and-forward concepts and the presence of a message ferry allow the end-to-end message delivery ratio to be around 90-99% with appropriate buffer allocations. We also investigate how different link availability patterns affect the end-to-end message delivery ratio in multihop DTN scenarios.

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In Proceedings of IEEE 63rd Vehicular Technology Conference (VTC), Volume 1, Pages 187-191, Melbourne, Australia, May 2006.

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Last modified: 17 November 2006
Brian D. Davison