Interference alignment for degrees of freedom improvement in 3-relay half-duplex systems

Handle URI:
http://hdl.handle.net/10754/564468
Title:
Interference alignment for degrees of freedom improvement in 3-relay half-duplex systems
Authors:
Park, Seongho; Ko, Youngchai; Park, Kihong ( 0000-0002-6867-4277 ) ; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In a half-duplex relaying, the capacity pre-log factor is a major drawback in spectral efficiency. This paper proposes a linear precoding scheme and an alternate relaying protocol in a dual-hop half-duplex system where three relays help the communication between the source and the destination. In our proposed scheme, we consider a phase incoherent method in relays in which the source alternately transmits message signals to the different relays. In addition, we propose a linear interference alignment scheme which can eliminate the inter-relay interference resulted from the phase incoherence of relaying. Based on our analysis of degrees of freedom and our simulation results, we show that our proposed scheme achieves additional degrees of freedom compared to the conventional half-duplex relaying. © 2011 IEEE.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2011 8th International Conference on Information, Communications & Signal Processing
Conference/Event name:
8th International Conference on Information, Communications and Signal Processing, ICICS 2011
Issue Date:
Dec-2011
DOI:
10.1109/ICICS.2011.6173521
Type:
Conference Paper
ISBN:
9781457700309
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPark, Seonghoen
dc.contributor.authorKo, Youngchaien
dc.contributor.authorPark, Kihongen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:01:46Zen
dc.date.available2015-08-04T07:01:46Zen
dc.date.issued2011-12en
dc.identifier.isbn9781457700309en
dc.identifier.doi10.1109/ICICS.2011.6173521en
dc.identifier.urihttp://hdl.handle.net/10754/564468en
dc.description.abstractIn a half-duplex relaying, the capacity pre-log factor is a major drawback in spectral efficiency. This paper proposes a linear precoding scheme and an alternate relaying protocol in a dual-hop half-duplex system where three relays help the communication between the source and the destination. In our proposed scheme, we consider a phase incoherent method in relays in which the source alternately transmits message signals to the different relays. In addition, we propose a linear interference alignment scheme which can eliminate the inter-relay interference resulted from the phase incoherence of relaying. Based on our analysis of degrees of freedom and our simulation results, we show that our proposed scheme achieves additional degrees of freedom compared to the conventional half-duplex relaying. © 2011 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleInterference alignment for degrees of freedom improvement in 3-relay half-duplex systemsen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2011 8th International Conference on Information, Communications & Signal Processingen
dc.conference.date13 December 2011 through 16 December 2011en
dc.conference.name8th International Conference on Information, Communications and Signal Processing, ICICS 2011en
dc.conference.locationSingaporeen
dc.contributor.institutionSchool of Electrical Engineering, Korea University, Seoul, South Koreaen
kaust.authorPark, Kihongen
kaust.authorAlouini, Mohamed-Slimen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.