MMSE One-Bit Precoding for MU-MIMO Systems With Enhanced Receive Processing

One-bit precoding is a recently proposed scheme that enables significant savings in hardware cost and power consumption for massive multiuser multiple-input-multiple-output systems. In this letter, a new minimum mean-square-error (MMSE) precoder is presented for both single- and multiple-antenna mob...

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Bibliographic Details
Published in:IEEE wireless communications letters 2020-04, Vol.9 (4), p.548-552
Main Author: Chen, Chiao-En
Format: Article
Language:English
Subjects:
Algorithms
Computer simulation
Detectors
digital-to-analog converter
Error analysis
Massive multiple-input–multiple-output (MIMO)
Mathematical programming
mean square error
MIMO (control systems)
multiuser
one-bit quantization
Optimization
Power consumption
Precoding
Receiving antennas
Reliability
Wireless communication
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Summary:One-bit precoding is a recently proposed scheme that enables significant savings in hardware cost and power consumption for massive multiuser multiple-input-multiple-output systems. In this letter, a new minimum mean-square-error (MMSE) precoder is presented for both single- and multiple-antenna mobile stations with enhanced receive processing (ERP) capability. By exploiting the structure embedded in the formulated nonconvex optimization problem, a new algorithm is developed on the basis of a combination of the alternating minimization method and mathematical programming with equilibrium constraints. An approximate maximum likelihood detector is also proposed to collaborate with the MMSE-ERP precoder. Simulation results verify that our MMSE-ERP precoder can exploit the additional degrees of freedom in the general system model considered, resulting in significant performance gain compared with existing one-bit precoders.
ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2019.2961907