| 基于QR分解的MIMO—OFDM信号检测算法 |
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| 引用本文： | 史律. 基于QR分解的MIMO—OFDM信号检测算法[J]. 江苏教育学院学报, 2008, 0(2): 1-4 |
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| 作者姓名： | 史律 |
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| 作者单位： | 南京邮电大学光电工程学院,江苏南京210003 |
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| 摘 要： | 本文研究了MIMO—OFDM系统基于QR分解的几种信号检测方法,分析了各种算法的优缺点．并提出了基于MMSE—SQR的改进球形算法,此算法结合了排序的SQR分解、MMSE准则和改进的sD检测算法,充分利用了它们的优点,在低运算复杂度的前提下,达到较优的性能．
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| 关 键 词： | MIMO—OFDM SQR分解 MMSE SD检测 |
A Signal Detection Algorithm in MIMO-OFDM System Based on QR Decomposition |
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| SHI Lv. A Signal Detection Algorithm in MIMO-OFDM System Based on QR Decomposition[J]. Journal of Jiangsu Institute of Education(Social Science), 2008, 0(2): 1-4 |
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| Authors: | SHI Lv |
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| Affiliation: | SHI Lv (Nanjing University of Posts and Telecommunications, Nanfing, Jiangsu, 210003, China) |
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| Abstract: | In this paper some signal detection algorithm based on QR decomposition in MOMI-OFDM communication system are discussed, after which the advantages and disadvantages of them are analyzed respectively. Based on the discussion and analysis, a new detection algorithm - modified SD--detection based on MMSE-SQR is proposed, which takes the SQR decomposition, MMSE criterion and modified SD detection into one. And the proposed algorithm has a relatively better performance under the circumstance of lower computational complexity. |
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| Keywords: | MOMI-OFDM SQR decomposition MMSE SD-detection |
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