Alternate MIMO relaying with three AF relays using interference alignment

Handle URI:
http://hdl.handle.net/10754/564554
Title:
Alternate MIMO relaying with three AF relays using interference alignment
Authors:
Park, Kihong ( 0000-0002-6867-4277 ) ; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we study a two-hop half-duplex relaying network with one source, one destination, and three amplify-and-forward (AF) relays equipped with M antennas each. We consider alternate transmission to compensate for the inherent loss of capacity pre-log factor 1/2 in half duplex mode, where source transmit message to two relays and the other relay alternately. The inter-relay interference caused by alternate transmission is aligned to make additional degrees of freedom (DOFs). It is shown that the proposed scheme enables us to exploit 3M/4 DOFs compared with the M/2 DOFs of conventional AF relaying. More specifically, suboptimal linear filter designs for a source and three relays are proposed to maximize the achievable sum-rate. We verify using some selected numerical results that the proposed filter designs give significant improvement of the sum-rate over a naive filter and conventional relaying schemes. © 2012 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2012 IEEE International Conference on Communications (ICC)
Conference/Event name:
2012 IEEE International Conference on Communications, ICC 2012
Issue Date:
Jun-2012
DOI:
10.1109/ICC.2012.6364543
Type:
Conference Paper
ISSN:
15503607
ISBN:
9781457720529
Appears in Collections:
Conference Papers; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPark, Kihongen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:03:51Zen
dc.date.available2015-08-04T07:03:51Zen
dc.date.issued2012-06en
dc.identifier.isbn9781457720529en
dc.identifier.issn15503607en
dc.identifier.doi10.1109/ICC.2012.6364543en
dc.identifier.urihttp://hdl.handle.net/10754/564554en
dc.description.abstractIn this paper, we study a two-hop half-duplex relaying network with one source, one destination, and three amplify-and-forward (AF) relays equipped with M antennas each. We consider alternate transmission to compensate for the inherent loss of capacity pre-log factor 1/2 in half duplex mode, where source transmit message to two relays and the other relay alternately. The inter-relay interference caused by alternate transmission is aligned to make additional degrees of freedom (DOFs). It is shown that the proposed scheme enables us to exploit 3M/4 DOFs compared with the M/2 DOFs of conventional AF relaying. More specifically, suboptimal linear filter designs for a source and three relays are proposed to maximize the achievable sum-rate. We verify using some selected numerical results that the proposed filter designs give significant improvement of the sum-rate over a naive filter and conventional relaying schemes. © 2012 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleAlternate MIMO relaying with three AF relays using interference alignmenten
dc.typeConference Paperen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2012 IEEE International Conference on Communications (ICC)en
dc.conference.date10 June 2012 through 15 June 2012en
dc.conference.name2012 IEEE International Conference on Communications, ICC 2012en
dc.conference.locationOttawa, ONen
kaust.authorPark, Kihongen
kaust.authorAlouini, Mohamed-Slimen
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