Automatic Modulation Classification for MASK, MPSK, and MQAM Signals Based on Hierarchical Self-Organizing Map.
Automatic Modulation Classification for MASK, MPSK, and MQAM Signals Based on Hierarchical Self-Organizing Map.
复制标题
基于分层自组织映射的 MASK、MPSK 和 MQAM 信号自动调制分类。
DOI：
10.3390/s22176449
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发表时间：
2022-08-26
期刊：
影响因子：
3.9
通讯作者：
Xing, Zuocheng
中科院分区：
文献类型：
--
作者：
Li, Zerun;Wang, Qinglin;Zhu, Yufei;Xing, Zuocheng
关键词：
Automatic modulation classification (AMC) plays a fundamental role in common communication systems. Existing clustering models typically handle fewer modulation types with lower classification accuracies and more computational resources. This paper proposes a hierarchical self-organizing map (SOM) based on a feature space composed of high-order cumulants (HOC) and amplitude moment features. This SOM with two stacked layers can identify intrinsic differences among samples in the feature space without the need to set thresholds. This model can roughly cluster the multiple amplitude-shift keying (MASK), multiple phase-shift keying (MPSK), and multiple quadrature amplitude keying (MQAM) samples in the root layer and then finely distinguish the samples with different orders in the leaf layers. We creatively implement a discrete transformation method based on modified activation functions. This method causes MQAM samples to cluster in the leaf layer with more distinct boundaries between clusters and higher classification accuracies. The simulation results demonstrate the superior performance of the proposed hierarchical SOM on AMC problems when compared with other clustering models. Our proposed method can manage more categories of modulation signals and obtain higher classification accuracies while using fewer computational resources.
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影响因子：
2.1
作者：
Dobre, Octavia A.
通讯作者：
Dobre, Octavia A.
DOI：
10.1109/tnnls.2021.3085433
发表时间：
2021-06-11
影响因子：
10.4
作者：
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Yao, Yu-Dong
影响因子：
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Kiang, MY
影响因子：
7.8
作者：
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通讯作者：
Castillo, Oscar
DOI：
10.1109/lcomm.2011.112311.112006
发表时间：
2012-01-01
期刊：
IEEE COMMUNICATIONS LETTERS
影响因子：
--
作者：
Dobre, Octavia A.;Oner, Menguc;Inkol, Robert
通讯作者：
Inkol, Robert