A Low-Complexity Modulation Classification Algorithm for MIMO–OSTBC System

被引：0
|
作者：
Guobing Qian
Ping Wei
Zongli Ruan
Jianqi Lu
机构：
[1] Southwest University,School of Electronic and Information Engineering
[2] University of Electronics Science and Technology of China,School of Electronic Engineering
[3] China University of Petroleum,College of Science
来源：
Circuits, Systems, and Signal Processing | 2017年 / 36卷
关键词：
Low complexity; Modulation classification; Multiple-input multiple-output (MIMO); Orthogonal space–time block code (OSTBC);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, a low-complexity modulation classification algorithm is proposed for the multiple-input multiple-output orthogonal space–time block code (MIMO–OSTBC) system. First, MIMO–OSTBC system is decoupled into several single-input single- output (SISO) systems by utilizing the orthogonal property of OSTBC. Then, these SISO systems are grouped into several two-input two- output systems. Finally, a maximum likelihood- based approach is used to classify the modulation. Both the cases of perfect and unknown channel state information (CSI) are considered. Simulations show that the proposed algorithm exhibits significantly lower complexity than conventional algorithm in both cases. Meanwhile, it provides better performance than conventional algorithm in the case of unknown CSI.
引用
收藏
页码：2622 / 2634
页数：12
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