arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.02023eess.SPcs.ITmath.IT
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Chain-Net:用于综合信道损伤下调制分类的学习深度模型

Chain-Net: Learning Deep Model for Modulation Classification Under Synthetic Channel Impairment

Thien Huynh-The, Van-Sang Doan, Cam-Hao Hua, Quoc-Viet Pham, Dong-Seong Kim

摘要:

调制分类是物理层中信号检测和解调之间的中间过程,现在引起了认知无线电领域的更多兴趣,其中性能由人工智能算法提供动力。然而,大多数现有的传统方法构成的障碍,有效地学习弱歧视性调制模式。本文提出了一种鲁棒的调制分类方法,利用深度学习来捕获调制信号在多尺度特征表示上的有意义信息。为此,开发了一种新的卷积神经网络架构,即Chain-Net,它具有组织在两个处理流程中的各种非对称内核,并通过深度级联和元素加法进行关联,以优化特征利用率。该网络在14种具有挑战性的调制格式的大数据集上进行评估,包括模拟和高阶数字技术。仿真结果表明,Chain-Net鲁棒地分类了遭受合成信道恶化的无线电信号的调制,并且比其他深度网络表现更好。

英文摘要:

Modulation classification, an intermediate process between signal detection and demodulation in a physical layer, is now attracting more interest to the cognitive radio field, wherein the performance is powered by artificial intelligence algorithms. However, most existing conventional approaches pose the obstacle of effectively learning weakly discriminative modulation patterns. This paper proposes a robust modulation classification method by taking advantage of deep learning to capture the meaningful information of modulation signal at multi-scale feature representations. To this end, a novel architecture of convolutional neural network, namely Chain-Net, is developed with various asymmetric kernels organized in two processing flows and associated via depth-wise concatenation and element-wise addition for optimizing feature utilization. The network is evaluated on a big dataset of 14 challenging modulation formats, including analog and high-order digital techniques. The simulation results demonstrate that Chain-Net robustly classifies the modulation of radio signals suffering from a synthetic channel deterioration and further performs better than other deep networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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