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An efficient algorithm for solving the downlink beamforming problem with indefinite constraints
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0002-3599-5584
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0003-2298-6774
2005 (English)In: 2005 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING,VOLS 1-5: SPEECH PROCESSING, IEEE , 2005, 905-908 p.Conference paper, Published paper (Refereed)
Abstract [en]

By imposing additional constraints in the downlink beamforming optimization. more general Quality of Service (QoS) measures than the average Signal to Interference and Noise Ratio (SINR) alone, can be introduced. Herein a rapidly converging algorithm solving the downlink beamforming problem with additional indefinite quadratic constraints on the beamforming vector is presented. The proposed algorithm is significantly faster than the previously proposed solution, which involves semidefinite programming. Also, the algorithm is easy to implement, since it only involves eigenvalue problems.

Place, publisher, year, edition, pages
IEEE , 2005. 905-908 p.
Series
International Conference on Acoustics Speech and Signal Processing ICASSP, ISSN 1520-6149
Keyword [en]
Antenna arrays, Array signal processing, Constraint optimization, Covariance matrix, Downlink, Eigenvalues and eigenfunctions, Interference constraints, Quality of service, Sensor systems, Signal to noise ratio
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-34978DOI: 10.1109/ICASSP.2005.1416156ISI: 000229404203226Scopus ID: 2-s2.0-33646791892ISBN: 0-7803-8874-7 (print)OAI: oai:DiVA.org:kth-34978DiVA: diva2:426807
Conference
30th IEEE International Conference on Acoustics, Speech, and Signal Processing Philadelphia, PA, MAR 19-23, 2005
Note
QC 20110627Available from: 2011-06-27 Created: 2011-06-17 Last updated: 2012-01-23Bibliographically approved

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Bengtsson, MatsOttersten, Björn

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Output format
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