Blind Channel Identifiability for Generic Linear Space-Time Block Codes
Blind Channel Identifiability for Generic Linear Space-Time Block Codes
复制标题
通用线性空时分组码的盲信道可识别性
DOI：
10.1109/tsp.2006.882089
复制
发表时间：
2007
影响因子：
5.4
通讯作者：
Z. Ding
中科院分区：
文献类型：
--
作者：
N. Ammar;Z. Ding
线性空时分组码（STBC）已在无线多输入多输出通信系统的性能提升方面证明了其有效性。然而，它们的成功解码需要接收端有可靠的信道知识。在本文中，我们提出了一种针对线性空时分组码的半盲信道估计方法，该方法无需通常的码正交性条件。我们提供了一组识别条件，这些条件大多可以根据码参数和天线阵列配置先验地验证。我们还提出了一种简单的信道估计算法。最后，我们给出了仿真结果，说明了所提方案的性能。
Linear space-time block codes (STBCs) have proven their effectiveness in performance improvement of wireless multiple-input multiple-output communication systems. Their successful decoding, however, requires reliable channel knowledge at the receiver. In this paper, we present a semiblind channel estimation method for linear STBC without the usual code orthogonality condition. We provide a set of identification conditions that are mostly verifiable a priori in terms of code parameters and antenna array configuration. We also present a simple channel estimation algorithm. Finally, we provide simulation results that illustrate the performance of the proposed scheme