Analysis of TCP and DTN Retransmission Algorithms in Presence of Channel Disruptions
SPACOMM '09 Proceedings of the 2009 First International Conference on Advances in Satellite and Space Communications
Delay- and Disruption-Tolerant Networking
IEEE Internet Computing
DT-talkie: interactive voice messaging for heterogeneous groups in delay-tolerant networks
CCNC'09 Proceedings of the 6th IEEE Conference on Consumer Communications and Networking Conference
Delay-tolerant networking: an approach to interplanetary Internet
IEEE Communications Magazine
DTN: an architectural retrospective
IEEE Journal on Selected Areas in Communications
A bundle protocol implementation for android devices
Proceedings of the 18th annual international conference on Mobile computing and networking
Free-riding the BitTorrent DHT to improve DTN connectivity
Proceedings of the seventh ACM international workshop on Challenged networks
Social-aware delay tolerant networking for mobile-to-mobile file sharing
International Journal of Communication Systems
Evaluating contact volume in DTN networks
Proceedings of the 3rd Extreme Conference on Communication: The Amazon Expedition
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Although first conceived for the Interplanetary Internet, DTN (Delay-/Disruption-Tolerant Networking) architecture has successively enlarged its application scope to embrace all "challenged networks", i.e. networks where the TCP design key assumptions of short RTT, no disruptions, and continuous end-to-end path availability are challenged. The distinctive features of DTN architecture seem ideal for the connectivity problems of modern smartphones. These are both PCs and cell phones and are characterized by a wide range of different communications technologies, including Bluetooth, WiFi, and advanced 3G radio interfaces, like UMTS HSP A (High-Speed Packet Access). The aim of this paper is to show that it is both feasible and useful to adopt DTN architecture on these advanced devices, in addition to the usual TCP/IP protocol stack. To this end, a series of tests is presented and discussed in the paper, considering various communication interfaces, 3G in particular. Tests were greatly facilitated by the introduction onto the market of some smartphones running Linux based operating systems, like Maemo, which allowed the authors the direct use of "official" DTN code (i.e. the DTN2 reference implementation and the DTNperf_2 evaluation tool).