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An experimental framework to investigate context-aware schemes for content delivery
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS. KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, KTH Center för Trådlösa System, Wireless@kth. (MSL)
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS. (MSL)
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS. KTH, Skolan för informations- och kommunikationsteknik (ICT), Centra, KTH Center för Trådlösa System, Wireless@kth. (MSL)
2011 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

A novel experimental approach for investigating the performances of context-aware content delivery schemes is presented in this paper. An innovative testbed, capable of remotely controlling multiple terminals, injecting a wide range of traffic loads in real networks and monitoring different performance measures has been developed and utilized for quantifying both the energy costs and user perceived service quality associated with different context- aware content pre-fetching schemes. In the implementation proposed in this paper, the context information required for performing content pre-fetching is extracted and utilized by individual user terminals and does not require any support from mobile operators. The performances of pre-fetching are compared to those of an on-demand content delivery scheme, for both video streaming and file downloading services. The results shows that not only pre-fetching can increase user service appreciation by reducing the time needed to access the information, but it can also significantly lower the amount of energy consumed in user terminals for retrieving the content. Our experiments further indicate that in order to achieve these additional energy gains only limited content prediction capabilities are required, thus making pre-fetching a solid candidate for the provision of a wide range of content types and services in both wide and local area networks.

Ort, förlag, år, upplaga, sidor
IEEE , 2011. s. 1-5
Serie
IEEE VTS Vehicular Technology Conference Proceedings, ISSN 1090-3038
Nyckelord [en]
Batteries, Mobile communication, Mobile computing, Multiaccess communication, Servers, Streaming media, Wireless communication
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
URN: urn:nbn:se:kth:diva-77617DOI: 10.1109/VETECF.2011.6093249ISI: 000298891500437Scopus ID: 2-s2.0-83755168349ISBN: 978-1-4244-8328-0 (tryckt)OAI: oai:DiVA.org:kth-77617DiVA, id: diva2:491853
Konferens
74th IEEE Vehicular Technology Conference, San Francisco, 5-8 September 2011
Anmärkning

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. QC 20120214

Tillgänglig från: 2012-02-14 Skapad: 2012-02-07 Senast uppdaterad: 2014-01-16Bibliografiskt granskad

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Lungaro, PietroViedma, CristobalSegall, Zary
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