具有1位反馈的双发射天线MIMO系统的闭环STBC

The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI:10.1109/ATC.2011.6027470

Van-Bien Pham, Weixing Sheng, Xiaofeng Ma, Hao Wang

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引用次数: 0

摘要

带反馈通道的闭环多输入多输出(C-MIMO)系统显著提高了系统的性能。近年来有许多研究针对发射天线数大于2的闭环MIMO系统提出了空时分组码(stbc)。然而，据我们所知，具有2个发射天线的闭环MIMO系统的STBC是不可用的。本文提出了具有两个发射天线的C-MIMO系统的STBC速率为1。通过在码字中旋转星座和坐标交错符号，实现了Alamouti码的完全多样性和线性解码复杂度。此外，采用1位反馈的代码在性能上有了显著的提高，并且优于开环Alamouti代码。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Closed-loop STBC for two transmit antenna MIMO systems with 1-bit feedback

The closed-loop multiple-input multiple-output (C-MIMO) systems with feedback channel significantly improve performance of systems. There are many recent researches proposed space time block codes (STBCs) for closed-loop MIMO systems which have number of transmit antennas greater 2. However, to the best of our knowledge, the STBC for closed-loop MIMO systems with 2 transmit antennas is not available. In this paper, we present a STBC rate of one for C-MIMO systems with two transmit antennas. By rotating constellation and coordinate interleaving symbols in codeword, the proposed code also achieves full diversity and linear decoding complexity as Alamouti code. In addition, the proposed code with 1-bit feedback achieves a significant improvement in performance and outperforms open-loop Alamouti code.

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The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)

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