Low-complexity wideband hybrid precoding for MMWave MIMO-OFDM

Hsin Wen Ku, Wei Hao Fang, Huan Lun Tso, Pei Yun Tsai, Yuan Hao Huang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

Hybrid RF and baseband precoding can not only deal with low-scattering problem caused by severe signal attenuation of mmWave but also significantly reduce the power and cost of radio frequency (RF) chains and data converters in the massive MIMO transceiver. However, its baseband complexity is still very high for frequency-selective multi-carrier system such as orthogonal frequency division multiplexing (OFDM). Therefore, this paper proposes a computationally-efficient hybrid precoding algorithm for mmWave MIMO-OFDM systems. By decomposing the optimization of spectrum efficiency into many sub-optimization problems, we developed an iterative matrix-inversion-bypass algorithm to reduce the complexity. The baseband precoder was also designed to further reduce total complexity. The simulation and complexity analysis results showed that we can significantly reduce computational complexity for mmWave MIMO with negligible performance degradation compared to a state-of-the-art work in the literature.

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主出版物標題2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728192017
DOIs
出版狀態已出版 - 2021
事件53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Daegu, Korea, Republic of
持續時間: 22 5月 202128 5月 2021

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
2021-May
ISSN(列印)0271-4310

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???event.eventtypes.event.conference???53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021
國家/地區Korea, Republic of
城市Daegu
期間22/05/2128/05/21

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