Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity
Abstract Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems allow for a data transmission rate of gigabits per second owing to the large bandwidth available in the mmWave spectrum and the antenna gains provided by the massive MIMO system. However, hybrid precoding with hi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-07-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13638-022-02150-2 |
| _version_ | 1818014989301055488 |
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| author | Yang Liu Qiutong Zhang Xin He Xuemei Lei Yinghui Zhang Tianshuang Qiu |
| author_facet | Yang Liu Qiutong Zhang Xin He Xuemei Lei Yinghui Zhang Tianshuang Qiu |
| author_sort | Yang Liu |
| collection | DOAJ |
| description | Abstract Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems allow for a data transmission rate of gigabits per second owing to the large bandwidth available in the mmWave spectrum and the antenna gains provided by the massive MIMO system. However, hybrid precoding with high complexity and low spectral efficiency cannot address the challenge of high cost and power consumption of RF chains of multi-user systems. In this paper, we propose a low-complexity hybrid precoding scheme for downlink multi-antenna multi-user mmWave massive MIMO systems, aiming to enhance the sum spectral efficiency (SSE) performance. We first extend the dimension of the analog precoding matrix into a square matrix and find the optimal analog combiner by selecting some of the discrete Fourier transform (DFT) bases, which enhances the equivalent baseband channel matrix gain. Then, we directly aggregate the channel gain through the equal gain transmission (EGT) method to ensure the frequency efficiency performance. Finally, we propose an improved BD scheme to design the digital precoder and combiner to reduce the inter-user interference. We consider both the mmWave channel and the Rayleigh channel to evaluate the performance of the proposed algorithm. The simulation results verify that the proposed scheme enjoys near-optimal achievable sum spectrum efficiency and BER performance in both the mmWave channel and Rayleigh channel and performs even better in Rayleigh channel than in the mmWave channel. |
| first_indexed | 2024-04-14T06:51:13Z |
| format | Article |
| id | doaj.art-3771b7b0aae94e70bb6aebbc039fd947 |
| institution | Directory Open Access Journal |
| issn | 1687-1499 |
| language | English |
| last_indexed | 2024-04-14T06:51:13Z |
| publishDate | 2022-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-3771b7b0aae94e70bb6aebbc039fd9472022-12-22T02:07:01ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992022-07-012022111910.1186/s13638-022-02150-2Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexityYang Liu0Qiutong Zhang1Xin He2Xuemei Lei3Yinghui Zhang4Tianshuang Qiu5College of Electronic Information Engineering, Inner Mongolia UniversityCollege of Electronic Information Engineering, Inner Mongolia UniversityCollege of Electronic Information Engineering, Inner Mongolia UniversityCollege of Electronic Information Engineering, Inner Mongolia UniversityCollege of Electronic Information Engineering, Inner Mongolia UniversityFaculty of Electronic Information and Electrical Engineering, Dalian University of TechnologyAbstract Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems allow for a data transmission rate of gigabits per second owing to the large bandwidth available in the mmWave spectrum and the antenna gains provided by the massive MIMO system. However, hybrid precoding with high complexity and low spectral efficiency cannot address the challenge of high cost and power consumption of RF chains of multi-user systems. In this paper, we propose a low-complexity hybrid precoding scheme for downlink multi-antenna multi-user mmWave massive MIMO systems, aiming to enhance the sum spectral efficiency (SSE) performance. We first extend the dimension of the analog precoding matrix into a square matrix and find the optimal analog combiner by selecting some of the discrete Fourier transform (DFT) bases, which enhances the equivalent baseband channel matrix gain. Then, we directly aggregate the channel gain through the equal gain transmission (EGT) method to ensure the frequency efficiency performance. Finally, we propose an improved BD scheme to design the digital precoder and combiner to reduce the inter-user interference. We consider both the mmWave channel and the Rayleigh channel to evaluate the performance of the proposed algorithm. The simulation results verify that the proposed scheme enjoys near-optimal achievable sum spectrum efficiency and BER performance in both the mmWave channel and Rayleigh channel and performs even better in Rayleigh channel than in the mmWave channel.https://doi.org/10.1186/s13638-022-02150-2Millimeter waveMassive MIMOHybrid precodingBlock diagonalizationSpectral efficiency |
| spellingShingle | Yang Liu Qiutong Zhang Xin He Xuemei Lei Yinghui Zhang Tianshuang Qiu Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity EURASIP Journal on Wireless Communications and Networking Millimeter wave Massive MIMO Hybrid precoding Block diagonalization Spectral efficiency |
| title | Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity |
| title_full | Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity |
| title_fullStr | Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity |
| title_full_unstemmed | Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity |
| title_short | Spectral-efficient hybrid precoding for multi-antenna multi-user mmWave massive MIMO systems with low complexity |
| title_sort | spectral efficient hybrid precoding for multi antenna multi user mmwave massive mimo systems with low complexity |
| topic | Millimeter wave Massive MIMO Hybrid precoding Block diagonalization Spectral efficiency |
| url | https://doi.org/10.1186/s13638-022-02150-2 |
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