MAX-SLNR Precoding Algorithm for Massive MIMO System
Pilot Contamination obviously degrades the system performance of Massive MIMO systems. In this paper, a downlink precoding algorithm based on the Signal-to- Leakage-plus-Noise-Ratio (SLNR) criterion is put forward. First, the impact of Pilot Contamination on SLNR is analyzed，then the precoding matri...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20165605005 |
| _version_ | 1818912079710519296 |
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| author | Jiang Jing Wang Honglin Xie Yongbin Yang Wujun |
| author_facet | Jiang Jing Wang Honglin Xie Yongbin Yang Wujun |
| author_sort | Jiang Jing |
| collection | DOAJ |
| description | Pilot Contamination obviously degrades the system performance of Massive MIMO systems. In this paper, a downlink precoding algorithm based on the Signal-to- Leakage-plus-Noise-Ratio (SLNR) criterion is put forward. First, the impact of Pilot Contamination on SLNR is analyzed，then the precoding matrix is calculated with the eigenvalues decomposition of SLNR, which not only maximize the array gains of the target user, but also minimize the impact of Pilot Contamination and the leak to the users of other cells. Further, a simplified solution is derived, in which the impact of Pilot Contamination can be suppressed only with the large-scale fading coefficients. Simulation results reveal that: in the scenario of the serious pilot contamination, the proposed algorithm can avoid the performance loss caused by the pilot contamination compared with the conventional Massive MIMO precoding algorithm. Thus the proposed algorithm can acquire the perfect performance gains of Massive MIMO system and has better practical value since the large-scale fading coefficients are easy to measure and feedback. |
| first_indexed | 2024-12-19T23:08:54Z |
| format | Article |
| id | doaj.art-06d6790ccb6541d4a86f518dda740acc |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-19T23:08:54Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-06d6790ccb6541d4a86f518dda740acc2022-12-21T20:02:16ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01560500510.1051/matecconf/20165605005matecconf_iccae2016_05005MAX-SLNR Precoding Algorithm for Massive MIMO SystemJiang JingWang HonglinXie YongbinYang WujunPilot Contamination obviously degrades the system performance of Massive MIMO systems. In this paper, a downlink precoding algorithm based on the Signal-to- Leakage-plus-Noise-Ratio (SLNR) criterion is put forward. First, the impact of Pilot Contamination on SLNR is analyzed，then the precoding matrix is calculated with the eigenvalues decomposition of SLNR, which not only maximize the array gains of the target user, but also minimize the impact of Pilot Contamination and the leak to the users of other cells. Further, a simplified solution is derived, in which the impact of Pilot Contamination can be suppressed only with the large-scale fading coefficients. Simulation results reveal that: in the scenario of the serious pilot contamination, the proposed algorithm can avoid the performance loss caused by the pilot contamination compared with the conventional Massive MIMO precoding algorithm. Thus the proposed algorithm can acquire the perfect performance gains of Massive MIMO system and has better practical value since the large-scale fading coefficients are easy to measure and feedback.http://dx.doi.org/10.1051/matecconf/20165605005 |
| spellingShingle | Jiang Jing Wang Honglin Xie Yongbin Yang Wujun MAX-SLNR Precoding Algorithm for Massive MIMO System MATEC Web of Conferences |
| title | MAX-SLNR Precoding Algorithm for Massive MIMO System |
| title_full | MAX-SLNR Precoding Algorithm for Massive MIMO System |
| title_fullStr | MAX-SLNR Precoding Algorithm for Massive MIMO System |
| title_full_unstemmed | MAX-SLNR Precoding Algorithm for Massive MIMO System |
| title_short | MAX-SLNR Precoding Algorithm for Massive MIMO System |
| title_sort | max slnr precoding algorithm for massive mimo system |
| url | http://dx.doi.org/10.1051/matecconf/20165605005 |
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