Hybrid Precoding Baseband Processor for 64x 64 Millimeter Wave MIMO Systems
Journal
IEEE Transactions on Circuits and Systems I: Regular Papers
Date Issued
2021
Author(s)
Abstract
This paper presents a hybrid precoding processor for millimeter wave (mmWave) multiple-input-multiple-output (MIMO) communication systems. The proposed architecture supports 64 antennas with 4-to-8 RF chains, and 4-bit phase resolution for each phase shifter in the analog beamformer. A polar decomposition (PD) engine is designed to achieve a 2.4-to-8.6x lower latency with 1.5-to-1.7x less normalized gate count compared to the singular value decomposition (SVD)-based implementation for the same functionality. Multiplicands are combined to reduce 55% area by utilizing the distributive property. Approximate phase extraction and low-precision multiplication for quantized phase extraction are adopted, which leads to 43% and 41% area reductions, respectively. The proposed hybrid precoding processor is designed in a 40-nm CMOS technology. It delivers a throughput of up to 10,288 kMat/s and consumes 170.9 mW at 278 MHz. It outperforms the state-of-the-art hybrid precoding processors with 5.5-13.7x higher normalized area efficiency and 6.9-38.4x lower normalized energy. IEEE
Subjects
Hardware
hybrid precoding
integrated circuits.
Matching pursuit algorithms
Millimeter wave (mmWave)
MIMO communication
multiple-input multiple-output (MIMO)
Optimized production technology
Precoding
Radio frequency
Transceivers
Codes (symbols)
Extraction
Feedback control
Integrated circuits
MIMO systems
Radio transceivers
Singular value decomposition
Telecommunication repeaters
Timing circuits
Hybrid precoding
Integrated circuit.
Millimeter wave
Multiple-input multiple-output
Multiple-input multiple-output communications
Radiofrequencies
Millimeter waves
Type
journal article