MMSE precoder for massive MIMO using 1-bit quantization

Abstract

We propose a novel linear minimum-mean-squared-error (MMSE) precoder design for a downlink (DL) massive multiple-input-multiple-output (MIMO) scenario. For economical and computational efficiency reasons low resolution 1-bit digital-to-analog (DAC) and analog-to-digital (ADC) converters are used. This comes at the cost of performance gain that can be recovered by the large number of antennas deployed at the base station (BS) and an appropiate precoder design to mitigate the distortions due to the coarse quantization. The proposed precoder takes the quantization non-linearities into account and is split into a digital precoder and an analog precoder. We formulate the two-stage precoding problem such that the MSE of the users is minimized under the 1-bit constraint. In the simulations, we compare the new optimized precoding scheme with previously proposed linear precoders in terms of uncoded bit error ratio (BER).

Presented in ICASSP 2016, 20-25 March 2016, Shanghai, China

References in corpus (3)

• Scaling up MIMO: Opportunities and Challenges with Very Large Arrays
• Massive MIMO with Non-Ideal Arbitrary Arrays: Hardware Scaling Laws and Circuit-Aware Design
• Massive MIMO and Small Cells: Improving Energy Efficiency by Optimal Soft-Cell Coordination

Cited by in corpus (13)

• One-Bit Precoding and Constellation Range Design for Massive MIMO with QAM Signaling
• Minimum BER Precoding in 1-Bit Massive MIMO Systems
• Multipair Massive MIMO Relaying Systems with One-Bit ADCs and DACs
• Secure Massive MIMO Communication with Low-resolution DACs
• Efficient Nonlinear Precoding for Massive MU-MIMO Downlink Systems with 1-Bit DACs
• Low-Resolution Precoding for Multi-Antenna Downlink Channels and OFDM
• 1-Bit Massive MIMO Transmission: Embracing Interference with Symbol-Level Precoding
• Interference Exploitation via Symbol-Level Precoding: Overview, State-of-the-Art and Future Directions
• 1-Bit MIMO for Terahertz Channels
• Interference Exploitation 1-Bit Massive MIMO Precoding: A Partial Branch-and-Bound Solution with Near-Optimal Performance
• Training for Channel Estimation in Nonlinear Multi-Antenna Transceivers
• Study of Channel Estimation Algorithms for Large-Scale Multiple-Antenna Systems using 1-Bit ADCs and Oversampling
• Low Resolution Digital-to-Analog Converter with Digital Dithering for MIMO Transmitter