| BLAST-OFDM系统中基于QR分解的检测算法 |
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| 引用本文： | 曹炎焱,曹雪虹,贾锋.BLAST-OFDM系统中基于QR分解的检测算法[J].南京邮电大学学报(自然科学版),2006,26(6):31-35. |
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| 作者姓名： | 曹炎焱 曹雪虹 贾锋 |
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| 作者单位： | 1. 南京邮电大学,通信与信息工程学院,江苏,南京,210003
2. 南京市公安局,车辆管理所,江苏,南京,210042 |
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| 摘 要： | 将BLAST(分层空时编码)和OFDM(正交频分复用)相结合,利用无线信道的多径传播特性产生并行空间信道,从而提高数据的传输速率,抵抗频率选择性衰落,并提出了一种基于QR分解检测的抑制连续干扰消除中误码扩散的检测算法。仿真证明,这种算法较QR分解检测算法误码率性能有了较大的提高,与排序QR分解检测算法相比误码率性能也有所改善,计算复杂度也略占优势。
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| 关 键 词： | 分层空时编码 正交频分复用 信号检测 |
| 文章编号： | 1673-5439（2006）06-0031-05 |
| 收稿时间： | 2006-01-28 |
| 修稿时间： | 2006-03-23 |
Signal Detecting Algorithms Based on QR Decomposition in BLAST-OFDM Systems |
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| CAO Yan-yan,CAO Xue-hong,JIA Feng.Signal Detecting Algorithms Based on QR Decomposition in BLAST-OFDM Systems[J].Journal of Nanjing University of Posts and Telecommunications,2006,26(6):31-35. |
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| Authors: | CAO Yan-yan CAO Xue-hong JIA Feng |
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| Institution: | 1. College of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. The Nanjing Traffic Police Bureau, Nanjing 210042, China |
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| Abstract: | This paper combines BLAST and OFDM to produce parallel spatial channels,suppress frequency selective fading and improve spectral efficiencies.Then a detection algorithm based on QR decomposition is proposed to minimize the error propagation(EP).Simulation results show that it has better BER performance than QR decomposition,and furthermore,it is superior to sorted QR decomposition in both BER performance and computational complexity. |
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| Keywords: | BLAST OFDM Signal detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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