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A Codebook-Based Precoding For Dual-Hop Downlink With Mimo Amplify-And-Forward Relaying
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
School of Information Science and Engineering, Southeast University, Nanjing, China.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-3599-5584
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-2298-6774
2009 (English)In: SPAWC: 2009 IEEE 10TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, NEW YORK: IEEE , 2009, 245-249 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper deals with the practical precoding design for a two-hop downlink with MIMO amplify-and-forward relaying. A novel scheme of codebook-based joint precoding at both the base station and the relay station is first presented, in which a distributed codeword selection is proposed to concurrently choose two joint precoders such that the feedback delay is considerably reduced. Then, the joint codebook design in such a joint precoding system is analyzed, revealing that independent codebook designs at the base station and relay station using the conventional Grassmannian subspace packing method is able to guarantee that the overall performance improves with either size of two codebooks. The excellent performances of the proposed scheme, in terms of both the sum rate and the BER, are finally confirmed with computational simulations.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2009. 245-249 p.
Keyword [en]
Grassmannian subspace packing method, MIMO amplify-and-forward relaying, base station, codebook-based precoding, distributed codeword selection, dual-hop downlink
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-30178DOI: 10.1109/SPAWC.2009.5161784ISI: 000274650700050Scopus ID: 2-s2.0-70449595723ISBN: 978-1-4244-3695-8 (print)OAI: oai:DiVA.org:kth-30178DiVA: diva2:400991
Conference
10th IEEE Workshop on Signal Processing Advances in Wireless Communications Perugia, ITALY, JUN 21-24, 2009
Note
QC 20110301Available from: 2011-03-01 Created: 2011-02-21 Last updated: 2012-01-23Bibliographically approved

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Bengtsson, MatsOttersten, Björn

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