التفاصيل البيبلوغرافية
| العنوان: |
Hybrid Precoding Baseband Processor for 64 × 64 Millimeter Wave MIMO Systems. |
| المؤلفون: |
Kao, Chen-Chien, Chen, Chiao-En, Yang, Chia-Hsiang |
| المصدر: |
IEEE Transactions on Circuits & Systems. Part I: Regular Papers; Apr2022, Vol. 69 Issue 4, p1765-1773, 9p |
| مصطلحات موضوعية: |
MILLIMETER waves, SINGULAR value decomposition, BASEBAND, TELECOMMUNICATION systems, MIMO systems, PHASE shifters |
| مستخلص: |
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- $8.6\times $ lower latency with 1.5-to- $1.7\times $ 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- $13.7\times $ higher normalized area efficiency and 6.9- $38.4\times $ lower normalized energy. [ABSTRACT FROM AUTHOR] |
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