NDLI: Optimal two-hop routing in delay-tolerant networks

Content Provider	IEEE Xplore Digital Library
Author	De Pellegrini, F. Miorandi, D. Carreras, I.
Copyright Year	2010
Description	Author affiliation: CREATE-NET, via alla Cascata 56/D, 38123, Povo (Trento), Italy (De Pellegrini, F.; Miorandi, D.; Carreras, I.)
Abstract	In this work we deal with the problem of dynamic decentralized self-optimization of forwarding protocols in delay-tolerant networks. We consider the two-hop forwarding protocol and we model the routing problem as an optimization one. We describe, under mild assumptions on the contact process among mobile nodes, the connection between the number of copies of a message and the cumulative probability distribution function of the message delay. We show that, despite the possible presence of a plurality of optimal policies, there always exists a threshold policy that is optimal. We also show that such an optimal strategy can be achieved at run-time by probing the network and with minimal message overhead. The approach is validated by implementing a self-optimizing algorithm in a network simulator; the performance of our solution is analyzed in the case of various real-world contact traces.
Starting Page	881
Ending Page	888
File Size	645242
Page Count	8
File Format	PDF
ISBN	9781424459995
e-ISBN	9781424460014
DOI	10.1109/EW.2010.5483532
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-12
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Disruption tolerant networking Intelligent networks Analytical models Wireless application protocol Mobile communication Routing protocols Probability distribution Performance analysis Relays Delay
Content Type	Text
Resource Type	Article

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