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
Potensi untuk menggunakan frekuensi gelombang milimeter (mmWave) dalam sistem komunikasi selular wayarles 5G akan datang telah mendorong kajian tatasusunan antena berskala besar untuk mencapai pembentukan pancaran berarah tinggi. Walau bagaimanapun, kaedah pembentuk pancaran digital sepenuhnya (DBF) konvensional yang memerlukan satu rantai frekuensi radio (RF) bagi setiap elemen antena tidak berdaya maju untuk tatasusunan antena berskala besar kerana kos yang tinggi dan penggunaan kuasa yang besar bagi komponen rantai RF frekuensi tinggi. Prapengekodan hibrid boleh mengurangkan bilangan rantai RF yang diperlukan dengan ketara dan mengurangkan penggunaan kuasa yang besar dalam sistem keluaran berbilang masukan berbilang masukan (MIMO) secara besar-besaran mmWave, sekali gus menarik banyak minat daripada akademik dan industri. Dalam makalah ini, kami mempertimbangkan komunikasi pautan bawah sistem MIMO (MU-MIMO) berbilang pengguna besar-besaran dalam saluran mmWave, dan mencadangkan skema penguraian min geometri pepenjuru (BD-GMD) blok hibrid kerumitan rendah. Lebih istimewa lagi, bentuk pancaran analog bersama hantar-terima (Tx-Rx) dengan tatasusunan berskala besar dicadangkan untuk meningkatkan keuntungan saluran, dan kemudian pendekatan BD-GMD berdimensi rendah dilaksanakan pada saluran jalur asas yang setara untuk mengurangkan antara pengguna. gangguan dan menyamakan aliran data yang berbeza bagi setiap pengguna. Dengan bantuan pembatalan gangguan berturut-turut (SIC) pada penerima, kami boleh menguraikan setiap saluran MIMO pengguna kepada sub-saluran selari dengan SNR/SINR yang lebih tinggi yang sama, dengan itu pengekodan kadar yang sama boleh digunakan merentas sub-saluran setiap pengguna. Akhir sekali, hasil simulasi mengesahkan bahawa skim prapengekodan BD-GMD hibrid yang dicadangkan mengatasi skema prapengekodan digital sepenuhnya dan hibrid konvensional sedia ada dan mampu mencapai prestasi BER yang lebih baik.
Wei WU
Beijing Laboratory of Advanced Information Network, Beijing Key Laboratory of Network System Architecture and Convergence and Beijing University of Posts and Telecommunications
Danpu LIU
Beijing Laboratory of Advanced Information Network, Beijing Key Laboratory of Network System Architecture and Convergence and Beijing University of Posts and Telecommunications
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Salinan
Wei WU, Danpu LIU, "Hybrid BD-GMD Precoding for Multiuser Millimeter-Wave Massive MIMO Systems" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 1, pp. 63-75, January 2019, doi: 10.1587/transcom.2018EBP3001.
Abstract: The potential for using millimeter-wave (mmWave) frequencies in future 5G wireless cellular communication systems has motivated the study of large-scale antenna arrays to achieve highly directional beamforming. However, the conventional fully digital beamforming (DBF) methods which require one radio frequency (RF) chain per antenna element are not viable for large-scale antenna arrays due to the high cost and large power consumption of high frequency RF chain components. Hybrid precoding can significantly reduce the number of required RF chains and relieve the huge power consumption in mmWave massive multiple-input multiple-output (MIMO) systems, thus attracting much interests from academic and industry. In this paper, we consider the downlink communication of a massive multiuser MIMO (MU-MIMO) system in the mmWave channel, and propose a low complexity hybrid block diagonal geometric mean decomposition (BD-GMD) scheme. More specially, a joint transmit-receive (Tx-Rx) analog beamforming with large-scale arrays is proposed to improve channel gain, and then a low-dimensional BD-GMD approach is implemented at the equivalent baseband channel to mitigate the inter-user interference and equalize different data streams of each user. With the help of successive interference cancellation (SIC) at the receiver, we can decompose each user's MIMO channel into parallel sub-channels with identical higher SNRs/SINRs, thus equal-rate coding can be applied across the sub-channels of each user. Finally, simulation results verify that the proposed hybrid BD-GMD precoding scheme outperforms existing conventional fully digital and hybrid precoding schemes and is able to achieve much better BER performance.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3001/_p
Salinan
@ARTICLE{e102-b_1_63,
author={Wei WU, Danpu LIU, },
journal={IEICE TRANSACTIONS on Communications},
title={Hybrid BD-GMD Precoding for Multiuser Millimeter-Wave Massive MIMO Systems},
year={2019},
volume={E102-B},
number={1},
pages={63-75},
abstract={The potential for using millimeter-wave (mmWave) frequencies in future 5G wireless cellular communication systems has motivated the study of large-scale antenna arrays to achieve highly directional beamforming. However, the conventional fully digital beamforming (DBF) methods which require one radio frequency (RF) chain per antenna element are not viable for large-scale antenna arrays due to the high cost and large power consumption of high frequency RF chain components. Hybrid precoding can significantly reduce the number of required RF chains and relieve the huge power consumption in mmWave massive multiple-input multiple-output (MIMO) systems, thus attracting much interests from academic and industry. In this paper, we consider the downlink communication of a massive multiuser MIMO (MU-MIMO) system in the mmWave channel, and propose a low complexity hybrid block diagonal geometric mean decomposition (BD-GMD) scheme. More specially, a joint transmit-receive (Tx-Rx) analog beamforming with large-scale arrays is proposed to improve channel gain, and then a low-dimensional BD-GMD approach is implemented at the equivalent baseband channel to mitigate the inter-user interference and equalize different data streams of each user. With the help of successive interference cancellation (SIC) at the receiver, we can decompose each user's MIMO channel into parallel sub-channels with identical higher SNRs/SINRs, thus equal-rate coding can be applied across the sub-channels of each user. Finally, simulation results verify that the proposed hybrid BD-GMD precoding scheme outperforms existing conventional fully digital and hybrid precoding schemes and is able to achieve much better BER performance.},
keywords={},
doi={10.1587/transcom.2018EBP3001},
ISSN={1745-1345},
month={January},}
Salinan
TY - JOUR
TI - Hybrid BD-GMD Precoding for Multiuser Millimeter-Wave Massive MIMO Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 63
EP - 75
AU - Wei WU
AU - Danpu LIU
PY - 2019
DO - 10.1587/transcom.2018EBP3001
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2019
AB - The potential for using millimeter-wave (mmWave) frequencies in future 5G wireless cellular communication systems has motivated the study of large-scale antenna arrays to achieve highly directional beamforming. However, the conventional fully digital beamforming (DBF) methods which require one radio frequency (RF) chain per antenna element are not viable for large-scale antenna arrays due to the high cost and large power consumption of high frequency RF chain components. Hybrid precoding can significantly reduce the number of required RF chains and relieve the huge power consumption in mmWave massive multiple-input multiple-output (MIMO) systems, thus attracting much interests from academic and industry. In this paper, we consider the downlink communication of a massive multiuser MIMO (MU-MIMO) system in the mmWave channel, and propose a low complexity hybrid block diagonal geometric mean decomposition (BD-GMD) scheme. More specially, a joint transmit-receive (Tx-Rx) analog beamforming with large-scale arrays is proposed to improve channel gain, and then a low-dimensional BD-GMD approach is implemented at the equivalent baseband channel to mitigate the inter-user interference and equalize different data streams of each user. With the help of successive interference cancellation (SIC) at the receiver, we can decompose each user's MIMO channel into parallel sub-channels with identical higher SNRs/SINRs, thus equal-rate coding can be applied across the sub-channels of each user. Finally, simulation results verify that the proposed hybrid BD-GMD precoding scheme outperforms existing conventional fully digital and hybrid precoding schemes and is able to achieve much better BER performance.
ER -