空时旋转不变性编码技术及其频率选择性信道盲估计方法

吴晓军; 李星; 王继龙; 张金祥

空时旋转不变性编码技术及其频率选择性信道盲估计方法

吴晓军^{①②;李星},
李星,
王继龙,
张金祥

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出版历程
- 收稿日期: 2004-06-04
- 修回日期: 2004-08-26
- 刊出日期: 2005-12-19

Space-Time Rotational-Invariance Coding Technique and Corresponding Blind Estimation Scheme of Frequency-Selective Channels

摘要

摘要: 针对处于频率选择性衰落环境中的垂直型贝尔实验室分层空时(Vertical Bell iabs LAyered Space-Time，V-BLAST)结构，该文首先对其进行联合空时符号分组，然后提出了一种新颖的空时旋转不变性编码技术(Space-Time Rotational-Invariance Coding Technique，STRICT)。通过巧妙利用上述编码技术中的旋转不变性性质，该文继续为V-BLAST结构提出了一种多输入多输出(Multiple-Input Multiple-Output，MIMO)频率选择性无线信道的盲估计方法。仿真结果表明了该文新颖STRICT的有效性及其信道盲估计方法的性能。
- 频率选择性; 多输入多输出;信道盲估计
Abstract: This paper firstly addresses the joint space-time symbol block for the Vertical Bell labs LAyered Space-Time (V-BLAST) architecture under the frequency-selective fading environment. Successively, one novel Space-Time Rotational-Invariance Coding Technique (STRICT) is proposed for the V-BLAST architecture. By elegantly exploiting the above introduced rotational-invariance property, one blind estimation scheme of the Multiple-Input Multiple-Output (MIMO) frequency-selective wireless channels is derived for the V-BLAST architecture. Extensive simulation results demonstrate both the validity of the novel STRICT and the performance of the blind estimation scheme of frequency-selective channels.

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