Engineering a distributed infrastructure for large-scale cost-effective content dissemination over urban vehicular networks Luan, Tom H., Cai, Lin X., Chen, Jiming, Shen, Xuemin (Sherman) and Bai, Fan 2014, Engineering a distributed infrastructure for large-scale cost-effective content dissemination over urban vehicular networks, IEEE transactions on vehicular technology, vol. 63, no. 3, Article number 6476746, pp. 1419-1435, doi: 10.1109/TVT.2013.2251924. Attached Files Name Description MIMEType Size Downloads Title Engineering a distributed infrastructure for large-scale cost-effective content dissemination over urban vehicular networks Author(s) Luan, Tom H. Cai, Lin X. Chen, Jiming Shen, Xuemin (Sherman) Bai, Fan Journal name IEEE transactions on vehicular technology Volume number 63 Issue number 3 Season Article number 6476746 Start page 1419 End page 1435 Total pages 17 Publisher IEEE Place of publication Piscataway, N. J. Publication date 2014-03 ISSN 0018-9545 Keyword(s) content distribution infrastructure random walk vehicular ad hoc network (VANET) Summary This paper proposes a practical and cost-effective approach to construct a fully distributed roadside communication infrastructure to facilitate the localized content dissemination to vehicles in the urban area. The proposed infrastructure is composed of distributed lightweight low-cost devices called roadside buffers (RSBs), where each RSB has the limited buffer storage and is able to transmit wirelessly the cached contents to fast-moving vehicles. To enable the distributed RSBs working toward the global optimal performance (e.g., minimal average file download delays), we propose a fully distributed algorithm to determine optimally the content replication strategy at RSBs. Specifically, we first develop a generic analytical model to evaluate the download delay of files, given the probability density of file distribution at RSBs. Then, we formulate the RSB content replication process as an optimization problem and devise a fully distributed content replication scheme accordingly to enable vehicles to recommend intelligently the desirable content files to RSBs. The proposed infrastructure is designed to optimize the global network utility, which accounts for the integrated download experience of users and the download demands of files. Using extensive simulations, we validate the effectiveness of the proposed infrastructure and show that the proposed distributed protocol can approach to the optimal performance and can significantly outperform the traditional heuristics. Language eng DOI 10.1109/TVT.2013.2251924 Field of Research 080502 Mobile Technologies Socio Economic Objective 890103 Mobile Data Networks and Services HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2014, IEEE Persistent URL http://hdl.handle.net/10536/DRO/DU:30064964 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Information Technology Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Tue, 15 Jul 2014, 16:37:17 EST Wed, 16 Jul 2014, 08:31:52 EST Wed, 30 Jul 2014, 10:01:05 EST Wed, 13 Aug 2014, 14:34:50 EST Wed, 13 Aug 2014, 14:36:30 EST Fri, 29 Aug 2014, 08:38:16 EST Fri, 29 Aug 2014, 11:26:15 EST Fri, 29 Aug 2014, 11:27:57 EST Mon, 06 Oct 2014, 16:23:23 EST Tue, 07 Oct 2014, 07:55:51 EST Tue, 07 Oct 2014, 07:56:57 EST Wed, 03 Dec 2014, 10:16:11 EST Filtered Full Citation counts:   Cited 76 times in TR Web of Science Cited 87 times in Scopus Search Google Scholar Access Statistics: 347 Abstract Views, 4 File Downloads  -  Detailed Statistics Created: Tue, 15 Jul 2014, 16:37:04 EST by Tom Luan