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Approaching the MIMO capacity with a low-rate feedback channel in V-BLAST

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dc.contributor.author Chung, Seong Taek
dc.contributor.author Lozano Solsona, Angel
dc.contributor.author Huang, Howard C.
dc.contributor.author Sutivong, Arak
dc.contributor.author Cioffi, John M.
dc.date.accessioned 2016-11-28T08:14:14Z
dc.date.available 2016-11-28T08:14:14Z
dc.date.issued 2004
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.
dc.identifier.issn 1110-8657
dc.identifier.uri http://hdl.handle.net/10230/27612
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.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Hindawi
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).
dc.rights.uri http://creativecommons.org/licenses/by/3.0/
dc.title Approaching the MIMO capacity with a low-rate feedback channel in V-BLAST
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1155/S1110865704312035
dc.subject.keyword Adaptive antennas
dc.subject.keyword BLAST
dc.subject.keyword Interference cancellation
dc.subject.keyword MIMO systems
dc.subject.keyword Space-time processing
dc.subject.keyword Discrete bit loading
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion


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