Approaching the MIMO capacity with a low-rate feedback channel in V-BLAST
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- dc.contributor.author Chung, Seong Taekca
- dc.contributor.author Lozano Solsona, Angelca
- dc.contributor.author Huang, Howard C.ca
- dc.contributor.author Sutivong, Arakca
- dc.contributor.author Cioffi, John M.ca
- dc.date.accessioned 2016-11-28T08:14:14Z
- dc.date.available 2016-11-28T08:14:14Z
- dc.date.issued 2004ca
- dc.description.abstract This paper presents an extension of the vertical Bell Laboratories Layered Space-Time (V-BLAST) architecture in which the closed-loop multiple-input multiple-output (MIMO) capacity can be approached with conventional scalar coding, optimum successive decoding (OSD), and independent rate assignments for each transmit antenna. This theoretical framework is used as a basis for the proposed algorithms whereby rate and power information for each transmit antenna is acquired via a low-rate feedback channel. We propose the successive quantization with power control (SQPC) and successive rate and power quantization (SRPQ) algorithms. In SQPC, rate quantization is performed with continuous power control. This performs better than simply quantizing the rates without power control. A more practical implementation of SQPC is SRPQ, in which both rate and power levels are quantized. The performance loss due to power quantization is insignificant when 4–5 bits are used per antenna. Both SQPC and SRPQ show an average total rate close to the closed-loop MIMO capacity if a capacity-approaching scalar code is used per antenna.en
- dc.format.mimetype application/pdfca
- dc.identifier.citation Chung ST, Lozano A, Huang HC, Sutivong A, Cioffi JM. Approaching the MIMO capacity with a low-rate feedback channel in V-BLAST. EURASIP J Appl Signal Processing. 2004 May;(5):762–71. DOI: 10.1155/S1110865704312035.ca
- dc.identifier.doi http://dx.doi.org/10.1155/S1110865704312035
- dc.identifier.issn 1110-8657ca
- dc.identifier.uri http://hdl.handle.net/10230/27612
- dc.language.iso engca
- dc.publisher Hindawica
- dc.relation.ispartof EURASIP Journal on Advances in Signal Processing. 2004 May;(5):762–71.
- dc.rights Aquest article es troba sota llicència Creative Commons (CC BY 3.0).ca
- dc.rights.accessRights info:eu-repo/semantics/openAccessca
- dc.rights.uri http://creativecommons.org/licenses/by/3.0/
- dc.subject.keyword Adaptive antennasen
- dc.subject.keyword BLASTen
- dc.subject.keyword Interference cancellationen
- dc.subject.keyword MIMO systemsen
- dc.subject.keyword Space-time processingen
- dc.subject.keyword Discrete bit loadingen
- dc.title Approaching the MIMO capacity with a low-rate feedback channel in V-BLASTca
- dc.type info:eu-repo/semantics/articleca
- dc.type.version info:eu-repo/semantics/publishedVersionca