Mobile content offloading in database-assisted white space networks

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Bayhan, Suzan
dc.contributor.author Premsankar, Gopika
dc.contributor.author Di Francesco, Mario
dc.contributor.author Kangasharju, Jussi
dc.date.accessioned 2020-02-13T08:11:50Z
dc.date.available 2020-02-13T08:11:50Z
dc.date.issued 2016
dc.identifier.citation Bayhan , S , Premsankar , G , Di Francesco , M & Kangasharju , J 2016 , Mobile content offloading in database-assisted white space networks . in Cognitive Radio Oriented Wireless Networks - 11th International Conference, CROWNCOM 2016, Proceedings . Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST , vol. 172 , Springer-Verlag , pp. 129-141 , International Conference on Cognitive Radio Oriented Wireless Networks , Grenoble , France , 30/05/2016 . https://doi.org/10.1007/978-3-319-40352-6_11 en
dc.identifier.isbn 9783319403519
dc.identifier.issn 18678211
dc.identifier.other PURE UUID: fd5968a9-0f4a-41a7-8dc5-6054580de475
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/mobile-content-offloading-in-databaseassisted-white-space-networks(fd5968a9-0f4a-41a7-8dc5-6054580de475).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=84976612797&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/40962832/Bayhan_Mobile_Content.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/43151
dc.description.abstract 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. en
dc.format.extent 13
dc.format.extent 129-141
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartof International Conference on Cognitive Radio Oriented Wireless Networks en
dc.relation.ispartofseries Cognitive Radio Oriented Wireless Networks - 11th International Conference, CROWNCOM 2016, Proceedings en
dc.relation.ispartofseries Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST en
dc.relation.ispartofseries Volume 172 en
dc.rights openAccess en
dc.subject.other Computer Networks and Communications en
dc.subject.other 113 Computer and information sciences en
dc.title Mobile content offloading in database-assisted white space networks en
dc.type A4 Artikkeli konferenssijulkaisussa fi
dc.description.version Peer reviewed en
dc.contributor.department Helsinki Insititute for Information Technology HIIT
dc.contributor.department Department of Computer Science
dc.contributor.department Department of Computer Science en
dc.subject.keyword Content delivery
dc.subject.keyword Dynamic spectrum access
dc.subject.keyword Mobile opportunistic offloading
dc.subject.keyword White space database
dc.subject.keyword White spaces
dc.subject.keyword WSDB
dc.subject.keyword Computer Networks and Communications
dc.subject.keyword 113 Computer and information sciences
dc.identifier.urn URN:NBN:fi:aalto-202002132220
dc.identifier.doi 10.1007/978-3-319-40352-6_11
dc.type.version acceptedVersion


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