Rate Maximization in MIMO Decode-and-Forward Communications With an EH Relay and Possibly Imperfect CSI

Handle URI:
http://hdl.handle.net/10754/622593
Title:
Rate Maximization in MIMO Decode-and-Forward Communications With an EH Relay and Possibly Imperfect CSI
Authors:
Benkhelifa, Fatma ( 0000-0003-1820-4207 ) ; Salem, Ahmed Sultan; 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) decode-and-forward (DF) relay system where the relay is an energy harvesting (EH) multi-antenna node equipped with an EH receiver and an information decoding (ID) receiver. The relay harvests the energy from the radio frequency (RF) signals sent by the source and uses it to forward the signals to the destination. The main objective in this paper is to maximize the achievable transmission rate of the overall link by optimizing the source/relay precoders. First, we study an upper bound on the maximum achievable rate where we assume that the EH and ID receivers operate simultaneously and have access to the whole power of the received signals. Afterwards, we study two practical schemes, which are the power splitting (PS) and time switching (TS) schemes, where the ID and EH receivers have partial access to the power or duration of the received signals. For each scheme, we have studied the complexity and the performance comparison. In addition, we considered the case of the imperfect channel estimation error and we have observed its impact on the achievable end-to-end rate and the harvested energy at the relay. © 1972-2012 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Benkhelifa F, Salem AS, Alouini M-S (2016) Rate Maximization in MIMO Decode-and-Forward Communications With an EH Relay and Possibly Imperfect CSI. IEEE Transactions on Communications 64: 4534–4549. Available: http://dx.doi.org/10.1109/TCOMM.2016.2603989.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Communications
Issue Date:
29-Aug-2016
DOI:
10.1109/TCOMM.2016.2603989
Type:
Article
ISSN:
0090-6778
Sponsors:
This paper was funded by a Sensor Initiative grant from the office of competitive research funding (OCRF) at KAUST in Saudi Arabia and accepted in part at IEEE 81st Vehicular Technology Conference (VTC'2015-Spring), Glasgow, Scotland. The associate editor coordinating the review of this paper and approving it for publication was Z. Ding.
Additional Links:
http://ieeexplore.ieee.org/document/7555367/
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.accessioned2017-01-02T09:55:32Z-
dc.date.available2017-01-02T09:55:32Z-
dc.date.issued2016-08-29en
dc.identifier.citationBenkhelifa F, Salem AS, Alouini M-S (2016) Rate Maximization in MIMO Decode-and-Forward Communications With an EH Relay and Possibly Imperfect CSI. IEEE Transactions on Communications 64: 4534–4549. Available: http://dx.doi.org/10.1109/TCOMM.2016.2603989.en
dc.identifier.issn0090-6778en
dc.identifier.doi10.1109/TCOMM.2016.2603989en
dc.identifier.urihttp://hdl.handle.net/10754/622593-
dc.description.abstractIn this paper, we investigate the simultaneous wireless information and power transfer (SWIPT) in a multiple-input multiple-output (MIMO) decode-and-forward (DF) relay system where the relay is an energy harvesting (EH) multi-antenna node equipped with an EH receiver and an information decoding (ID) receiver. The relay harvests the energy from the radio frequency (RF) signals sent by the source and uses it to forward the signals to the destination. The main objective in this paper is to maximize the achievable transmission rate of the overall link by optimizing the source/relay precoders. First, we study an upper bound on the maximum achievable rate where we assume that the EH and ID receivers operate simultaneously and have access to the whole power of the received signals. Afterwards, we study two practical schemes, which are the power splitting (PS) and time switching (TS) schemes, where the ID and EH receivers have partial access to the power or duration of the received signals. For each scheme, we have studied the complexity and the performance comparison. In addition, we considered the case of the imperfect channel estimation error and we have observed its impact on the achievable end-to-end rate and the harvested energy at the relay. © 1972-2012 IEEE.en
dc.description.sponsorshipThis paper was funded by a Sensor Initiative grant from the office of competitive research funding (OCRF) at KAUST in Saudi Arabia and accepted in part at IEEE 81st Vehicular Technology Conference (VTC'2015-Spring), Glasgow, Scotland. The associate editor coordinating the review of this paper and approving it for publication was Z. Ding.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/document/7555367/en
dc.subjectdecode-and-forwarden
dc.subjectEnergy harvestingen
dc.subjectimperfect channel state information (CSI)en
dc.subjectmaximum achievable rateen
dc.subjectMIMO relay systemsen
dc.subjectpower splitting (PS)en
dc.subjectsimultaneous wireless information and power transfer (SWIPT)en
dc.subjecttime switching (TS)en
dc.subjectupper bounden
dc.titleRate Maximization in MIMO Decode-and-Forward Communications With an EH Relay and Possibly Imperfect CSIen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Transactions on Communicationsen
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.