Majorization-Minimization Aided Hybrid Transceivers for MIMO Interference Channels

The potential of deploying large-scale antenna arrays in future wireless systems has stimulated extensive research on hybrid transceiver designs aiming to approximate the optimal fully-digital schemes with much reduced hardware cost and signal processing complexity. Generally, this hybrid transceive...

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Bibliographic Details
Published in:IEEE transactions on signal processing Vol. 68; p. 1
Main Authors: Gong, Shiqi, Xing, Chengwen, Lau, Vincent K. N., Chen, Sheng, Hanzo, Lajos
Format: Journal Article
Language:English
Published: New York IEEE 01.01.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Algorithms
Antenna arrays
Channels
Complexity
Hardware
Hybrid structures
Hybrid transceiver designs
Interference
majorization-minimization
Millimeter waves
MIMO (control systems)
MIMO interference channels
Optimization
Orthogonal Frequency Division Multiplexing
Power consumption
Signal processing
Transceivers
WMMSE
ISSN:1053-587X, 1941-0476
Online Access:Get full text
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Summary:The potential of deploying large-scale antenna arrays in future wireless systems has stimulated extensive research on hybrid transceiver designs aiming to approximate the optimal fully-digital schemes with much reduced hardware cost and signal processing complexity. Generally, this hybrid transceiver structure requires a joint design of analog and digital processing to enable both beamsteering and spatial multiplexing gains. In this paper, we develop various weighted mean-square-error minimization (WMMSE) based hybrid transceiver designs over multiple-input multiple-output (MIMO) interference channels at both millimeter wave (mmWave) and microwave frequencies. Firstly, a heuristic joint design of hybrid precoder and combiner using alternating optimization is proposed, in which the majorization-minimization (MM) method is utilized to design the analog precoder and combiner under unit-modulus constraints. It is demonstrated that this scheme achieves comparable performance to that of the fully-digital WMMSE solution. To further reduce the complexity imposed, a phase projection based two-stage scheme is proposed to decouple the designs of the analog and digital { precoder-combiner}. Secondly, inspired by the fully-digital solutions based on the block-diagonalization zero-forcing (BD-ZF) and signal-to-leakage-plus-noise ratio (SLNR) criteria, low-complexity MM-based BD-ZF and SLNR hybrid designs are proposed for approximating the corresponding fully-digital solutions. Thirdly, the partially-connected hybrid structure conceived for reducing system hardware cost and power consumption is considered, for which the MM-based alternating optimization still works. Our numerical results characterize the performance of the proposed schemes in comparison to the existing benchmarkers.
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ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2020.3018548