Precoding Design of MIMO Amplify-and-Forward Communication System With an Energy Harvesting Relay and Possibly Imperfect CSI

Handle URI:
http://hdl.handle.net/10754/622967
Title:
Precoding Design of MIMO Amplify-and-Forward Communication System With an Energy Harvesting Relay and Possibly Imperfect CSI
Authors:
Benkhelifa, Fatma ( 0000-0003-1820-4207 ) ; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we investigate the simultaneous wireless information and power transfer (SWIPT) in a Multiple-Input Multiple-Output (MIMO) Amplify-and-Forward (AF) relay communication system where the relay is an energy harvesting (EH) node and harvests the energy the signals transmitted from the source. The harvested energy is partially used to forward signals from the source to the destination, and the remaining energy is stored for other usages. The SWIPT in relay-assisted communication is interesting as long as the relay stores energy from the source and the destination receives successfully the data from the source. In this context, we propose to investigate the source and relay precoders that characterize the relationship between the achievable stored energy at the relay and the achievable sourceto- destination rate, namely the rate-stored energy (R-E) tradeo region. First, we consider the ideal scheme where there is the simultaneous operation of the EH and ID receivers at the relay. Then, we consider practical schemes such as the power splitting (PS) and the time switching (TS) that separate the operation of EH and information decoding (ID) receivers over power domain or time domain, respectively. Moreover, we study the case of imperfect channel state information (CSI) at the relay and the destination and characterize its impact on the achievable R-E region. Through the simulation results, we show the eect of the position of the relay and the channel uncertainty on the achievable R-E regions of all the schemes when the used energy at the relay is constant or variable. We also show that, although it provides an outer bound on the achievable rate-energy region in one-hop MIMO systems, the ideal scheme provides only an upper bound on the maximum achievable end-to-end rate and not an outer bound on the R-E region.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Benkhelifa F, Alouini M-S (2017) Precoding Design of MIMO Amplify-and-Forward Communication System With an Energy Harvesting Relay and Possibly Imperfect CSI. IEEE Access: 1–1. Available: http://dx.doi.org/10.1109/ACCESS.2016.2646387.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Access
Issue Date:
2-Mar-2017
DOI:
10.1109/ACCESS.2016.2646387
Type:
Article
ISSN:
2169-3536
Sponsors:
This paper was funded by a grant from Sensor Research Initiative funded by the Office of Sponsored Research at King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
Additional Links:
http://ieeexplore.ieee.org/document/7869326/
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.authorAlouini, Mohamed-Slimen
dc.date.accessioned2017-03-06T11:13:35Z-
dc.date.available2017-03-06T11:13:35Z-
dc.date.issued2017-03-02en
dc.identifier.citationBenkhelifa F, Alouini M-S (2017) Precoding Design of MIMO Amplify-and-Forward Communication System With an Energy Harvesting Relay and Possibly Imperfect CSI. IEEE Access: 1–1. Available: http://dx.doi.org/10.1109/ACCESS.2016.2646387.en
dc.identifier.issn2169-3536en
dc.identifier.doi10.1109/ACCESS.2016.2646387en
dc.identifier.urihttp://hdl.handle.net/10754/622967-
dc.description.abstractIn this paper, we investigate the simultaneous wireless information and power transfer (SWIPT) in a Multiple-Input Multiple-Output (MIMO) Amplify-and-Forward (AF) relay communication system where the relay is an energy harvesting (EH) node and harvests the energy the signals transmitted from the source. The harvested energy is partially used to forward signals from the source to the destination, and the remaining energy is stored for other usages. The SWIPT in relay-assisted communication is interesting as long as the relay stores energy from the source and the destination receives successfully the data from the source. In this context, we propose to investigate the source and relay precoders that characterize the relationship between the achievable stored energy at the relay and the achievable sourceto- destination rate, namely the rate-stored energy (R-E) tradeo region. First, we consider the ideal scheme where there is the simultaneous operation of the EH and ID receivers at the relay. Then, we consider practical schemes such as the power splitting (PS) and the time switching (TS) that separate the operation of EH and information decoding (ID) receivers over power domain or time domain, respectively. Moreover, we study the case of imperfect channel state information (CSI) at the relay and the destination and characterize its impact on the achievable R-E region. Through the simulation results, we show the eect of the position of the relay and the channel uncertainty on the achievable R-E regions of all the schemes when the used energy at the relay is constant or variable. We also show that, although it provides an outer bound on the achievable rate-energy region in one-hop MIMO systems, the ideal scheme provides only an upper bound on the maximum achievable end-to-end rate and not an outer bound on the R-E region.en
dc.description.sponsorshipThis paper was funded by a grant from Sensor Research Initiative funded by the Office of Sponsored Research at King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabiaen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/document/7869326/en
dc.rights(c) 2017 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.subjectstored energyen
dc.subjectSimultaneous Wireless Information and Power Transfer (SWIPT)en
dc.subjectMultiple-Input Multiple-Output (MIMO)en
dc.subjectAmplify-and-Forward (AF) relayen
dc.subjectrate-stored energy (R-E) tradeo regionen
dc.subjectideal schemeen
dc.subjectPower Splitting (PS)en
dc.subjectTime Switching (TS)en
dc.subjectachievable end-to-end rateen
dc.subjectharvested energyen
dc.titlePrecoding Design of MIMO Amplify-and-Forward Communication System With an Energy Harvesting Relay and Possibly Imperfect CSIen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Accessen
dc.eprint.versionPost-printen
kaust.authorBenkhelifa, Fatmaen
kaust.authorAlouini, Mohamed-Slimen
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