DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yukawa, Masahiro | ko |
dc.contributor.author | Sung, Youngchul | ko |
dc.contributor.author | Lee, Gilwon | ko |
dc.date.accessioned | 2013-08-08T05:01:01Z | - |
dc.date.available | 2013-08-08T05:01:01Z | - |
dc.date.created | 2013-06-27 | - |
dc.date.created | 2013-06-27 | - |
dc.date.issued | 2013-06 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON SIGNAL PROCESSING, v.61, no.11, pp.2874 - 2886 | - |
dc.identifier.issn | 1053-587X | - |
dc.identifier.uri | http://hdl.handle.net/10203/174347 | - |
dc.description.abstract | In this paper, a novel adaptive beamforming algorithm is proposed under a linearly and quadratically constrained minimum variance (LQCMV) beamforming framework, based on a dual-domain projection approach that can efficiently implement a quadratic-inequality constraint with a possibly rank-deficient positive semi-definite matrix, and the properties of the proposed algorithm are analyzed. As an application, relaxed zero-forcing (RZF) beamforming is presented which adopts a specific quadratic constraint that bounds the power of residual interference in the beamformer output with the aid of interference-channel side-information available typically in wireless multiple-access systems. The dual-domain projection in this case plays a role in guiding the adaptive algorithm towards a better direction to minimize the interference and noise, leading to considerably faster convergence. The robustness issue against channel mismatch and ill-posedness is also addressed. Numerical examples show that the efficient use of interference side-information brings considerable gains. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | PROJECTED SUBGRADIENT METHOD | - |
dc.subject | ARRAY | - |
dc.title | Dual-Domain Adaptive Beamformer Under Linearly and Quadratically Constrained Minimum Variance | - |
dc.type | Article | - |
dc.identifier.wosid | 000319592700012 | - |
dc.identifier.scopusid | 2-s2.0-84877884114 | - |
dc.type.rims | ART | - |
dc.citation.volume | 61 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 2874 | - |
dc.citation.endingpage | 2886 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON SIGNAL PROCESSING | - |
dc.identifier.doi | 10.1109/TSP.2013.2254481 | - |
dc.contributor.localauthor | Sung, Youngchul | - |
dc.contributor.nonIdAuthor | Yukawa, Masahiro | - |
dc.contributor.nonIdAuthor | Lee, Gilwon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Adaptive beamforming | - |
dc.subject.keywordAuthor | dual-domain adaptive algorithm | - |
dc.subject.keywordAuthor | LCMV | - |
dc.subject.keywordAuthor | LQCMV | - |
dc.subject.keywordAuthor | relaxed zero forcing | - |
dc.subject.keywordPlus | PROJECTED SUBGRADIENT METHOD | - |
dc.subject.keywordPlus | ARRAY | - |
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