| MIMO-OFDM系统中的基于等对角QR分解的联合收发机的性能研究 |
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| 引用本文： | 贺中堂,张力军,陈自力.MIMO-OFDM系统中的基于等对角QR分解的联合收发机的性能研究[J].重庆邮电大学学报(自然科学版),2006,18(4):443-447. |
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| 作者姓名： | 贺中堂 张力军 陈自力 |
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| 作者单位： | 1. 南京邮电大学,信息工程系,江苏,南京,210003
2. 徐州空军学院,江苏,徐州,221000 |
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| 摘 要： | 研究了一种对信道矩阵进行等对角QR分解的联合编/解码算法，与传统对信道矩阵进行SVD分解算法不同之处在于，该算法将MIMO信道分解为多个相同的并行子信道，与VBLAST检测算法结合起来具有复杂度低，易于实现的优点。仿真结果表明采用该算法的SER性能优于除MLD以外算法的性能，并进一步从信道容量的角度证明了采用该算法，在高信噪比下所获得的信道容量与注水功率算法和等功率算法是相同的。
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| 关 键 词： | 等对角QR分解 注水功率法 SVD分解 |
| 文章编号： | 1004-5694(2006)04-0443-05 |
| 收稿时间： | 2005/12/20 0:00:00 |
| 修稿时间： | 2005年12月20 |
Joint transceiver design performance using equal-diagonal QR decomposition for MIMO-OFDM systems |
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| HE Zhong-tang,ZHANG Li-jun,CHEN Zi-li.Joint transceiver design performance using equal-diagonal QR decomposition for MIMO-OFDM systems[J].Journal of Chongqing University of Posts and Telecommunications,2006,18(4):443-447. |
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| Authors: | HE Zhong-tang ZHANG Li-jun CHEN Zi-li |
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| Institution: | College of Information Engineering, Nanjing University of Posts and Telecommunications, NanJing 210003, P.R.China |
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| Abstract: | In this paper a joint transceiver design that uses equal-diagonal QR decomposition with VBLAST decoder for MIMO systems has researched. The scheme is different from conventional SVD decomposition for MIMO channels in that it decomposes MIMO channels into multiple identical parallel sub-channels, which can make it convenient to design coding/decoding scheme. Our simulation results prove that using this scheme the SER performance is more optimal than any other methods proposed in this paper except MLD,and it also proved that this scheme is asymptotically optimal for high SNR in term of channel capacity. |
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| Keywords: | MIMO-OFDM |
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