|
Título:
|
Cooperative download in urban vehicular networks
|
|
Autor/a:
|
Fiore, Marco; Barceló Ordinas, José María
|
|
Otros autores:
|
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CNDS - Xarxes de Computadors i Sistemes Distribuïts |
|
Abstract:
|
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. |
|
Abstract:
|
Peer Reviewed |
|
Materia(s):
|
-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) |
|
Derechos:
|
|
|
Tipo de documento:
|
Artículo - Versión publicada
Objeto de conferencia |
|
Editor:
|
IEEE Computer Society Publications
|
|
Compartir:
|
|
