The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
밀리미터파(mmWave) 다중 입력 다중 출력(MIMO) 시스템에서 광대역 대규모 안테나 어레이를 사용한 아날로그 빔포밍은 빔 스퀸트 문제에 직면해 있습니다. 본 논문에서는 먼저 하이브리드 어레이를 사용하는 광대역 mmWave 시스템에서 서브어레이 공간 분리에 대한 아날로그 빔포밍의 민감도를 조사하고 최적화된 서브어레이 분리를 제안합니다. 그런 다음 ZC(Zadoff-Chu) 시퀀스를 기반으로 위상 보상을 수행한 후 개선된 아날로그 빔포밍을 설계하여 RF(무선 주파수) 등가 채널의 주파수 응답을 평탄화했습니다. 수신기의 단일 반송파 주파수 영역 등화(SC-FDE) 방식을 고려하여 출력 신호 대 잡음비 측면에서 복잡도가 낮은 선형 제로 강제(ZF) 및 최소 평균 제곱 오류(MMSE) 등화기를 도출합니다. (SNR) 등화 후. 시뮬레이션 결과는 개선된 아날로그 빔포밍이 빔 스퀸트로 인한 주파수 선택적 딥 페이딩을 효과적으로 제거하고 기존 아날로그 빔포밍에 비해 더 나은 비트 오류율 성능을 달성할 수 있음을 보여줍니다.
Yongpeng HU
Hangzhou Dianzi University
Hang LI
Hangzhou Dianzi University
J. Andrew ZHANG
University of Technology Sydney
Xiaojing HUANG
University of Technology Sydney
Zhiqun CHENG
Hangzhou Dianzi University
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부
Yongpeng HU, Hang LI, J. Andrew ZHANG, Xiaojing HUANG, Zhiqun CHENG, "Optimal Design of Wideband mmWave LoS MIMO Systems Using Hybrid Arrays with Beam Squint" in IEICE TRANSACTIONS on Communications,
vol. E107-B, no. 1, pp. 244-252, January 2024, doi: 10.1587/transcom.2023EBP3073.
Abstract: Analog beamforming with broadband large-scale antenna arrays in millimeter wave (mmWave) multiple input multiple output (MIMO) systems faces the beam squint problem. In this paper, we first investigate the sensitivity of analog beamforming to subarray spatial separations in wideband mmWave systems using hybrid arrays, and propose optimized subarray separations. We then design improved analog beamforming after phase compensation based on Zadoff-Chu (ZC) sequence to flatten the frequency response of radio frequency (RF) equivalent channel. Considering a single-carrier frequency-domain equalization (SC-FDE) scheme at the receiver, we derive low-complexity linear zero-forcing (ZF) and minimum mean squared error (MMSE) equalizers in terms of output signal-to-noise ratio (SNR) after equalization. Simulation results show that the improved analog beamforming can effectively remove frequency-selective deep fading caused by beam squint, and achieve better bit-error-rate performance compared with the conventional analog beamforming.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2023EBP3073/_p
부
@ARTICLE{e107-b_1_244,
author={Yongpeng HU, Hang LI, J. Andrew ZHANG, Xiaojing HUANG, Zhiqun CHENG, },
journal={IEICE TRANSACTIONS on Communications},
title={Optimal Design of Wideband mmWave LoS MIMO Systems Using Hybrid Arrays with Beam Squint},
year={2024},
volume={E107-B},
number={1},
pages={244-252},
abstract={Analog beamforming with broadband large-scale antenna arrays in millimeter wave (mmWave) multiple input multiple output (MIMO) systems faces the beam squint problem. In this paper, we first investigate the sensitivity of analog beamforming to subarray spatial separations in wideband mmWave systems using hybrid arrays, and propose optimized subarray separations. We then design improved analog beamforming after phase compensation based on Zadoff-Chu (ZC) sequence to flatten the frequency response of radio frequency (RF) equivalent channel. Considering a single-carrier frequency-domain equalization (SC-FDE) scheme at the receiver, we derive low-complexity linear zero-forcing (ZF) and minimum mean squared error (MMSE) equalizers in terms of output signal-to-noise ratio (SNR) after equalization. Simulation results show that the improved analog beamforming can effectively remove frequency-selective deep fading caused by beam squint, and achieve better bit-error-rate performance compared with the conventional analog beamforming.},
keywords={},
doi={10.1587/transcom.2023EBP3073},
ISSN={1745-1345},
month={January},}
부
TY - JOUR
TI - Optimal Design of Wideband mmWave LoS MIMO Systems Using Hybrid Arrays with Beam Squint
T2 - IEICE TRANSACTIONS on Communications
SP - 244
EP - 252
AU - Yongpeng HU
AU - Hang LI
AU - J. Andrew ZHANG
AU - Xiaojing HUANG
AU - Zhiqun CHENG
PY - 2024
DO - 10.1587/transcom.2023EBP3073
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E107-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2024
AB - Analog beamforming with broadband large-scale antenna arrays in millimeter wave (mmWave) multiple input multiple output (MIMO) systems faces the beam squint problem. In this paper, we first investigate the sensitivity of analog beamforming to subarray spatial separations in wideband mmWave systems using hybrid arrays, and propose optimized subarray separations. We then design improved analog beamforming after phase compensation based on Zadoff-Chu (ZC) sequence to flatten the frequency response of radio frequency (RF) equivalent channel. Considering a single-carrier frequency-domain equalization (SC-FDE) scheme at the receiver, we derive low-complexity linear zero-forcing (ZF) and minimum mean squared error (MMSE) equalizers in terms of output signal-to-noise ratio (SNR) after equalization. Simulation results show that the improved analog beamforming can effectively remove frequency-selective deep fading caused by beam squint, and achieve better bit-error-rate performance compared with the conventional analog beamforming.
ER -