Codebook-based interference alignment for uplink MIMO interference channels

Handle URI:
http://hdl.handle.net/10754/563383
Title:
Codebook-based interference alignment for uplink MIMO interference channels
Authors:
Lee, Hyun Ho; Park, Kihong ( 0000-0002-6867-4277 ) ; Ko, Youngchai; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we propose a codebook-based interference alignment (IA) scheme in the constant multiple-input multipleoutput (MIMO) interference channel especially for the uplink scenario. In our proposed scheme, we assume cooperation among base stations (BSs) through reliable backhaul links so that global channel knowledge is available for all BSs, which enables BS to compute the transmit precoder and inform its quantized index to the associated user via limited rate feedback link.We present an upper bound on the rate loss of the proposed scheme and derive the scaling law of the feedback load tomaintain a constant rate loss relative to IA with perfect channel knowledge. Considering the impact of overhead due to training, cooperation, and feedback, we address the effective degrees of freedom (DOF) of the proposed scheme and derive the maximization of the effective DOF. From simulation results, we verify our analysis on the scaling law to preserve the multiplexing gain and confirm that the proposed scheme is more effective than the conventional IA scheme in terms of the effective DOF. © 2014 KICS.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
Journal of Communications and Networks
Issue Date:
Feb-2014
DOI:
10.1109/JCN.2014.000005
Type:
Article
ISSN:
12292370
Sponsors:
This work has been supported in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2012R1A1A2004494) and in part by a grant from King Abdulaziz City of Science and Technology (KACST).
Appears in Collections:
Articles; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLee, Hyun Hoen
dc.contributor.authorPark, Kihongen
dc.contributor.authorKo, Youngchaien
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T11:47:12Zen
dc.date.available2015-08-03T11:47:12Zen
dc.date.issued2014-02en
dc.identifier.issn12292370en
dc.identifier.doi10.1109/JCN.2014.000005en
dc.identifier.urihttp://hdl.handle.net/10754/563383en
dc.description.abstractIn this paper, we propose a codebook-based interference alignment (IA) scheme in the constant multiple-input multipleoutput (MIMO) interference channel especially for the uplink scenario. In our proposed scheme, we assume cooperation among base stations (BSs) through reliable backhaul links so that global channel knowledge is available for all BSs, which enables BS to compute the transmit precoder and inform its quantized index to the associated user via limited rate feedback link.We present an upper bound on the rate loss of the proposed scheme and derive the scaling law of the feedback load tomaintain a constant rate loss relative to IA with perfect channel knowledge. Considering the impact of overhead due to training, cooperation, and feedback, we address the effective degrees of freedom (DOF) of the proposed scheme and derive the maximization of the effective DOF. From simulation results, we verify our analysis on the scaling law to preserve the multiplexing gain and confirm that the proposed scheme is more effective than the conventional IA scheme in terms of the effective DOF. © 2014 KICS.en
dc.description.sponsorshipThis work has been supported in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2012R1A1A2004494) and in part by a grant from King Abdulaziz City of Science and Technology (KACST).en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectEffective degrees of freedom (DOF)en
dc.subjectInterference alignment (IA)en
dc.subjectLimited feedbacken
dc.subjectMultiplexing gainen
dc.subjectUplink multiple input multiple output(MIMO) interference channel (IC)en
dc.titleCodebook-based interference alignment for uplink MIMO interference channelsen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalJournal of Communications and Networksen
dc.contributor.institutionSchool of Electrical Engineering, Korea University, Seoul, 136-713, South Koreaen
dc.contributor.institutionAdvanced Communication Technology Laboratory, LG Electronics, Seoul, South Koreaen
kaust.authorPark, Kihongen
kaust.authorAlouini, Mohamed-Slimen
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