Mobile content offloading in database-assisted white space networks

Suzan Bayhan*, Gopika Premsankar, Mario Di Francesco, Jussi Kangasharju

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

3 Sitaatiot (Scopus)
119 Lataukset (Pure)


Mobile data offloading leverages more affordable or even free network capacity to reduce the traffic experienced by cellular operators through their limited over-the-air resources. One way to harvest free capacity is to employ the white space, namely, frequencies that are assigned to licensed users but are not actively utilized, as long as no harmful interference is generated. In this article, we characterize the benefits of harnessing node contacts for mobile content offloading through dynamic spectrum access assisted by a white space database (WSDB). We take a content-centric approach and model the selection of distributors among the subscribers of each content served through a base station. We formulate an optimization problem to maximize the offloading gain based on realistic settings. We show that such a problem is NP-hard and devise efficient heuristics for practical mobile data offloading. Our results show that the offloading gain allowed by white space is significant even when WSDB data are inaccurate.

OtsikkoCognitive Radio Oriented Wireless Networks - 11th International Conference, CROWNCOM 2016, Proceedings
ISBN (painettu)9783319403519
DOI - pysyväislinkit
TilaJulkaistu - 2016
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on Cognitive Radio Oriented Wireless Networks - Grenoble, Ranska
Kesto: 30 toukok. 20161 kesäk. 2016
Konferenssinumero: 11


NimiLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
ISSN (painettu)18678211


ConferenceInternational Conference on Cognitive Radio Oriented Wireless Networks


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