DocumentCode
1756597
Title
A First-Order Optimal Zero-Forcing Beamformer Design for Multiuser MIMO Systems via a Regularized Dual Accelerated Gradient Method
Author
Bin Li ; Hai Huyen Dam ; Cantoni, Antonio ; Kok Lay Teo
Author_Institution
Dept. of Math. & Stat., Curtin Univ., Perth, WA, Australia
Volume
19
Issue
2
fYear
2015
fDate
Feb. 2015
Firstpage
195
Lastpage
198
Abstract
A first-order zero-forcing beamformer design is proposed in this letter for MU-MIMO systems under per-antenna power constraints (PAPC). By forming the regularized dual problem, first-order methods can be applied. To achieve the limit convergence rate of first-order methods, an accelerated method is introduced to solve the regularized dual problem. Simulation results are provided to show the effectiveness of the proposed method.
Keywords
MIMO communication; array signal processing; gradient methods; MU-MIMO systems; accelerated method; first order methods; first order optimal zero forcing beamformer design; multiuser MIMO systems; perantenna power constraints; regularized dual accelerated gradient method; Acceleration; Australia; Complexity theory; Convergence; Gradient methods; Information rates; Vectors; MIMO systems; Zero-forcing beamforming (ZFBF); accelerated gradient method; first-order method; per-antenna power constraint (PAPC);
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2014.2381245
Filename
6985532
Link To Document