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dc.contributor.authorSboui, Lokman
dc.contributor.authorRezki, Zouheir
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2016-04-04T13:36:38Z
dc.date.available2016-04-04T13:36:38Z
dc.date.issued2016-03-01
dc.identifier.citationAchievable Rates of Cognitive Radio Networks Using Multi-Layer Coding with Limited CSI 2016:1 IEEE Transactions on Vehicular Technology
dc.identifier.issn0018-9545
dc.identifier.issn1939-9359
dc.identifier.doi10.1109/TVT.2016.2536690
dc.identifier.urihttp://hdl.handle.net/10754/604378
dc.description.abstractIn a Cognitive Radio (CR) framework, the channel state information (CSI) feedback to the secondary transmitter (SU Tx) can be limited or unavailable. Thus, the statistical model is adopted in order to determine the system performance using the outage concept. In this paper, we adopt a new approach using multi-layer-coding (MLC) strategy, i.e., broadcast approach, to enhance spectrum sharing over fading channels. First, we consider a scenario where the secondary transmitter has no CSI of both the link between SU Tx and the primary receiver (cross-link) and its own link. We show that using MLC improves the cognitive rate compared to the rate provided by a singlelayer- coding (SLC). In addition, we observe numerically that 2-Layer coding achieves most of the gain for Rayleigh fading. Second, we analyze a scenario where SU Tx is provided by partial CSI about its link through quantized CSI. We compute its achievable rate adopting the MLC and highlight the improvement over SLC. Finally, we study the case in which the cross-link is perfect, i.e., a cooperative primary user setting, and compare the performance with the previous cases. We present asymptotic analysis at high power regime and show that the cooperation enhances considerably the cognitive rate at high values of the secondary power budget.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7422834
dc.rights(c) 2016 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.subjectCognitive radio
dc.subjectachievable rate
dc.subjectbroadcast approach
dc.titleAchievable Rates of Cognitive Radio Networks Using Multi-Layer Coding with Limited CSI
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.identifier.journalIEEE Transactions on Vehicular Technology
dc.eprint.versionPost-print
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personLokman Sboui
kaust.personZouheir Rezki
kaust.personMohamed-Slim Alouini
refterms.dateFOA2018-06-13T11:36:00Z
dc.date.published-online2016-03-01
dc.date.published-print2016


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