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dc.contributor.authorShnaiwer, Yousef N.
dc.contributor.authorSorour, Sameh
dc.contributor.authorAboutorab, Neda
dc.contributor.authorSadeghi, Parastoo
dc.contributor.authorAl-Naffouri, Tareq Y.
dc.date.accessioned2016-04-17T09:15:17Z
dc.date.available2016-04-17T09:15:17Z
dc.date.issued2016-03-28
dc.identifier.doi10.1109/GLOCOM.2015.7417276
dc.identifier.doi10.1109/GLOCOM.2014.7417276
dc.identifier.urihttp://hdl.handle.net/10754/605654
dc.description.abstractNext-generation cellular networks are expected to be assisted by femtocaches (FCs), which collectively store the most popular files for the clients. Given any arbitrary non-fragmented placement of such files, a strict no-latency constraint, and clients' prior knowledge, new file download requests could be efficiently handled by both the FCs and the macrocell base station (MBS) using opportunistic network coding (ONC). In this paper, we aim to find the best allocation of coded file downloads to the FCs so as to minimize the MBS involvement in this download process. We first formulate this optimization problem over an ONC graph, and show that it is NP-hard. We then propose a greedy approach that maximizes the number of files downloaded by the FCs, with the goal to reduce the download share of the MBS. This allocation is performed using a dual conflict ONC graph to avoid conflicts among the FC downloads. Simulations show that our proposed scheme almost achieves the optimal performance and significantly saves on the MBS bandwidth.
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7417276
dc.rights(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
dc.titleNetwork-Coded Content Delivery in Femtocaching-Assisted Cellular Networks
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journal2015 IEEE Global Communications Conference (GLOBECOM)
dc.conference.date6-10 Dec. 2015
dc.conference.name2015 IEEE Global Communications Conference (GLOBECOM)
dc.conference.locationSan Diego, CA
dc.eprint.versionPost-print
dc.contributor.institutionElectrical Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia
dc.contributor.institutionResearch School of Engineering, The Australian National University, Canberra, Australia
refterms.dateFOA2018-06-13T12:21:34Z
dc.date.published-online2016-03-28
dc.date.published-print2015-12


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