On Multiple Users Scheduling Using Superposition Coding over Rayleigh Fading Channels

Handle URI:
http://hdl.handle.net/10754/269853
Title:
On Multiple Users Scheduling Using Superposition Coding over Rayleigh Fading Channels
Authors:
Zafar, Ammar ( 0000-0001-8382-7625 ) ; Alnuweiri, Hussein; Shaqfeh, Mohammad; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this letter, numerical results are provided to analyze the gains of multiple users scheduling via superposition coding with successive interference cancellation in comparison with the conventional single user scheduling in Rayleigh blockfading broadcast channels. The information-theoretic optimal power, rate and decoding order allocation for the superposition coding scheme are considered and the corresponding histogram for the optimal number of scheduled users is evaluated. Results show that at optimality there is a high probability that only two or three users are scheduled per channel transmission block. Numerical results for the gains of multiple users scheduling in terms of the long term throughput under hard and proportional fairness as well as for fixed merit weights for the users are also provided. These results show that the performance gain of multiple users scheduling over single user scheduling increases when the total number of users in the network increases, and it can exceed 10% for high number of users
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers
Journal:
Communications Letters, IEEE
Issue Date:
20-Feb-2013
DOI:
10.1109/LCOMM.2013.021213.122465
Type:
Article
ISSN:
1089-7798
Appears in Collections:
Articles; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZafar, Ammaren
dc.contributor.authorAlnuweiri, Husseinen
dc.contributor.authorShaqfeh, Mohammaden
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2013-02-20T12:15:42Z-
dc.date.available2013-02-20T12:15:42Z-
dc.date.issued2013-02-20en
dc.identifier.issn1089-7798en
dc.identifier.doi10.1109/LCOMM.2013.021213.122465en
dc.identifier.urihttp://hdl.handle.net/10754/269853en
dc.description.abstractIn this letter, numerical results are provided to analyze the gains of multiple users scheduling via superposition coding with successive interference cancellation in comparison with the conventional single user scheduling in Rayleigh blockfading broadcast channels. The information-theoretic optimal power, rate and decoding order allocation for the superposition coding scheme are considered and the corresponding histogram for the optimal number of scheduled users is evaluated. Results show that at optimality there is a high probability that only two or three users are scheduled per channel transmission block. Numerical results for the gains of multiple users scheduling in terms of the long term throughput under hard and proportional fairness as well as for fixed merit weights for the users are also provided. These results show that the performance gain of multiple users scheduling over single user scheduling increases when the total number of users in the network increases, and it can exceed 10% for high number of usersen
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineersen
dc.subjectRayleigh block-fadingen
dc.subjectbroadcast channelsen
dc.subjectmultiple users schedulingen
dc.subjectsuccessive interference cancellationen
dc.titleOn Multiple Users Scheduling Using Superposition Coding over Rayleigh Fading Channelsen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalCommunications Letters, IEEEen
dc.eprint.versionPre-printen
dc.contributor.institutionElectronics and Communication Department, Faculty of Engineering, Cairo University, Cairo, Egypten
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZafar, Ammaren
kaust.authorAlouini, Mohamed-Slimen
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