An Improved SLNR Pre-coding with Minimum BERSorting and Iterative Optimizing
[1]GAO Xiankun,CUI Yan,YU Yongchang.An Improved SLNR Pre-coding with Minimum BERSorting and Iterative Optimizing[J].Journal of Zhengzhou University (Engineering Science),2012,33(02):19-23.[doi:10.3969/j.issn.1671-6833.2012.02.005]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 02
Page number:
19-23
Column:
Public date:
2012-03-10
- Title:
- An Improved SLNR Pre-coding with Minimum BERSorting and Iterative Optimizing
- Keywords:
- multiple-input multiple-output ( MIMO ); signal-to-leakage-and-noise-ratio; minimu bit error rate ; iterate
- CLC:
- TN911.22
- Abstract:
- For the co-channel interference in multi-user MIMO system, an improved SLNR ( signal-to-leakageand-noise-ratio) pre-coding scheme is proposed, to solve the problem that the system performance declineswith the increase of interference user. Combining BER performance and channel quality, the proposed schemetakes firstly the known multi-user co-channel interference int SLNR maximization criterion to be suppressed.uses SNR ( signal-to-noise-ratio) sort each user’s pre-coding matrix, then utilizes the known muli-user co-channel interference to iterate and optimize the follow-up user’s pre-coding matrix, which can further improvesystem performance, Without collaboration between base station and user, the proposed scheme merely utilizesthe channel information at transmitter to optimize pre-coding matrix, has low complexity and faster conver-gence. Simulation result shows that both BER performance and system capacity gain are greatly improved compared with the original SLNR, especially in high SNR.
- References:
- -
- Similar References:
Memo
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Last Update:
1900-01-01
