A First-Order Optimal Zero-Forcing Beamformer Design for Multiuser MIMO Systems via a Regularized Dual Accelerated Gradient Method
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Authors
Li, Bin
Dam, Hai Huyen Heidi
Cantoni, Antonio
Teo, Kok Lay
Date
2015Type
Journal Article
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Li, B. and Dam, H. and Cantoni, A. and Teo, K. 2015. A First-Order Optimal Zero-Forcing Beamformer Design for Multiuser MIMO Systems via a Regularized Dual Accelerated Gradient Method. IEEE Communications Letters. 19 (2): pp. 195-198.
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IEEE Communications Letters
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School
Department of Mathematics and Statistics
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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.
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