Show simple item record

dc.contributor.authorSboui, Lokman
dc.contributor.authorRezki, Zouheir
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-04T07:22:39Z
dc.date.available2015-08-04T07:22:39Z
dc.date.issued2013-12
dc.identifier.isbn9781479913534
dc.identifier.doi10.1109/GLOCOM.2013.6831237
dc.identifier.urihttp://hdl.handle.net/10754/564837
dc.description.abstractWe study the impact of adopting a multi layer coding (MLC) strategy, i.e., the so-called broadcast approach (BA) on the throughput of Cognitive Radio (CR) spectrum sharing systems for general fading channels. First, we consider a scenario where the secondary transmitter, a part from the statistics, has no channel state information (CSI) of the cross link and its own link. We show that using BA improves the cognitive achievable rate compared to the outage rate provided by a single layer coding (SLC). In addition, we, also, observe numerically that 2-Layer coding achieves most of the gain. Then, we consider a situation where the secondary transmitter has a partial CSI about its own link through quantized CSI. Again, we compute the secondary achievable rate adopting the BA and highlight the improvement over SLC. Numerical results show that the advantage of MLC decreases as the rate of the feedback link increases. 1 © 2013 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectachievable rate
dc.subjectbroadcast approach
dc.subjectfading channels
dc.subjectquantized CSI
dc.subjectUnderlay cognitive radio
dc.titleImproving the throughput of cognitive radio networks using the broadcast approach
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journal2013 IEEE Global Communications Conference (GLOBECOM)
dc.conference.date9 December 2013 through 13 December 2013
dc.conference.name2013 IEEE Global Communications Conference, GLOBECOM 2013
dc.conference.locationAtlanta, GA
kaust.personSboui, Lokman
kaust.personRezki, Zouheir
kaust.personAlouini, Mohamed-Slim


This item appears in the following Collection(s)

Show simple item record