|4/2013 - 20|
Fountain-code Aided File Transfer in Vehicular Delay Tolerant NetworksLANGARI, S. M. M. , YOUSEFI, S. , JABBEHDARI, S.
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Ad hoc Network, buffer storage, disruption tolerant network, error correction codes, routing protocols
networks(24), communications(17), routing(15), fountain(14), codes(13), tolerant(12), delay(11), mobile(8), coding(8), vehicular(7)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2013-11-30
Volume 13, Issue 4, Year 2013, On page(s): 117 - 124
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2013.04020
Web of Science Accession Number: 000331461300020
SCOPUS ID: 84890160075
We propose a mechanism for facilitating file transferring in Vehicular Delay Tolerant Networks. The proposed architecture includes using Fountain coding in the application layer, UDP in the transport layer and a proposed DTN routing algorithm in the network layer. It is assumed that files are coded based on a sample of Fountain codes which does not need in-order reception of packets. As a result, there is no need of using close-loop reliable protocols such as TCP, hence suffering from their different overheads; as a result, UDP can be used in the transport layer. In the network layer, we propose a novel DTN routing algorithm based on AODV and Store-Carry and Forward policy. This algorithm (named as AODV-DTN) uses a cross layer interaction between the network and the application layer. Results of extensive simulations study for highway scenarios show that the proposed architecture leads to a better performance in terms of file delivery ratio and byte throughput when compared with FOUNTAIN and classic FTP scenarios. Furthermore, the negative effect of increasing file size is mitigated in comparison to other alternatives. It is also shown that for delay tolerant and long-distanced inter-RSU communications the proposed architecture behaves sufficiently well.
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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