Sum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relays

Handle URI:
http://hdl.handle.net/10754/622001
Title:
Sum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relays
Authors:
Benkhelifa, Fatma; Salem, Ahmed Sultan; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we consider a multiuser multipleinput multiple-output (MIMO) decode-and-forward (DF) relay broadcasting channel (BC) with single source, multiple energy harvesting (EH) relays and multiple destinations. All the nodes are equipped with multiple antennas. The EH and information decoding (ID) tasks at the relays and destinations are separated over the time, which is termed as the time switching (TS) scheme. As optimal solutions for the sum-rate maximization problems of BC channels and the MIMO interference channels are hard to obtain, the end-to-end sum rate maximization problem of a multiuser MIMO DF relay BC channel is even harder. In this paper, we propose to tackle a simplified problem where we employ the block diagonalization (BD) procedure at the source, and we mitigate the interference between the relaydestination channels using an algorithm similar to the BD method. In order to show the relevance of our low complex proposed solution, we compare it to the minimum mean-square error (MMSE) solution that was shown in the literature to be equivalent to the solution of the sum-rate maximization in MIMO broadcasting interfering channels. We also investigate the time division multiple access (TDMA) solution which separates all the information transmissions from the source to the relays and from the relays to the destinations over time. We provide numerical results to show the relevance of our proposed solution, in comparison with the no co-channel interference (CCI) case, the TDMA based solution and the MMSE based solution.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Benkhelifa F, Sultan A, Alouini M-S (2016) Sum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relays. IEEE Journal on Selected Areas in Communications: 1–1. Available: http://dx.doi.org/10.1109/JSAC.2016.2611878.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Journal on Selected Areas in Communications
Issue Date:
20-Sep-2016
DOI:
10.1109/JSAC.2016.2611878
Type:
Article
ISSN:
0733-8716
Sponsors:
This paper was funded by the Sensor Research Initiative funded by the Office of Sponsored Research at King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah Province, Saudi Arabia
Additional Links:
http://ieeexplore.ieee.org/document/7572098/
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBenkhelifa, Fatmaen
dc.contributor.authorSalem, Ahmed Sultanen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-12-12T08:35:48Z-
dc.date.available2016-12-12T08:35:48Z-
dc.date.issued2016-09-20en
dc.identifier.citationBenkhelifa F, Sultan A, Alouini M-S (2016) Sum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relays. IEEE Journal on Selected Areas in Communications: 1–1. Available: http://dx.doi.org/10.1109/JSAC.2016.2611878.en
dc.identifier.issn0733-8716en
dc.identifier.doi10.1109/JSAC.2016.2611878en
dc.identifier.urihttp://hdl.handle.net/10754/622001-
dc.description.abstractIn this paper, we consider a multiuser multipleinput multiple-output (MIMO) decode-and-forward (DF) relay broadcasting channel (BC) with single source, multiple energy harvesting (EH) relays and multiple destinations. All the nodes are equipped with multiple antennas. The EH and information decoding (ID) tasks at the relays and destinations are separated over the time, which is termed as the time switching (TS) scheme. As optimal solutions for the sum-rate maximization problems of BC channels and the MIMO interference channels are hard to obtain, the end-to-end sum rate maximization problem of a multiuser MIMO DF relay BC channel is even harder. In this paper, we propose to tackle a simplified problem where we employ the block diagonalization (BD) procedure at the source, and we mitigate the interference between the relaydestination channels using an algorithm similar to the BD method. In order to show the relevance of our low complex proposed solution, we compare it to the minimum mean-square error (MMSE) solution that was shown in the literature to be equivalent to the solution of the sum-rate maximization in MIMO broadcasting interfering channels. We also investigate the time division multiple access (TDMA) solution which separates all the information transmissions from the source to the relays and from the relays to the destinations over time. We provide numerical results to show the relevance of our proposed solution, in comparison with the no co-channel interference (CCI) case, the TDMA based solution and the MMSE based solution.en
dc.description.sponsorshipThis paper was funded by the Sensor Research Initiative funded by the Office of Sponsored Research at King Abdullah University of Science and Technology (KAUST), Thuwal, Makkah Province, Saudi Arabiaen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/document/7572098/en
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.en
dc.subjectMMSEen
dc.subjectEnergy harvestingen
dc.subjectSWIPTen
dc.subjectmultiuser multipleinput multiple-output (MIMO)en
dc.subjectdecode-and-forward (DF)en
dc.subjectbroadcasting channel (BC)en
dc.subjectinterference channelen
dc.subjectsum-rate maximizationen
dc.subjectblock diagonalization (BD)en
dc.subjectTDMAen
dc.titleSum-Rate Enhancement in Multiuser MIMO Decode-and-Forward Relay Broadcasting Channel with Energy Harvesting Relaysen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Journal on Selected Areas in Communicationsen
dc.eprint.versionPost-printen
kaust.authorBenkhelifa, Fatmaen
kaust.authorSalem, Ahmed Sultanen
kaust.authorAlouini, Mohamed-Slimen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.