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Title:
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Cooperative download in urban vehicular networks
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Author:
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Fiore, Marco; Barceló Ordinas, José María
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CNDS - Xarxes de Computadors i Sistemes Distribuïts |
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Abstract:
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We target urban scenarios where vehicular users can download large files from road-side Access Points (APs), and define a framework to exploit opportunistic encounters between mobile nodes to increase their transfer rate. We first devise a
technique for APs deployment, based on vehicular traffic flows analysis, which fosters cooperative download. Then, we propose and evaluate different algorithms for carriers selection and chunk scheduling in carry&forward data transfers. Results obtained under realistic road topology and vehicular mobility conditions show that coupling our APs deployment scheme with probabilistic carriers selection and redundant chunk scheduling yields a worstcase
2x gain in the average download rate with respect to direct download, as well as a lOx reduction in the rate of undelivered chunks with respect to a blind carry&forward. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
-Mobile communication systems
-Traffic flow
-Radio access networks
-Cooperative download mobile node
-Road-side access point
-Enginyeria del trànsit
-Xarxes d'àrea local (Xarxes d'ordinadors) |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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IEEE Computer Society Publications
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