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Wavelet Transform
WTSCNet: A CSI Feedback Network Based on Wavelet Transform Convolution and Attention Mechanism
2025
<title>Abstract</title> To enhance the performance of massive MIMO systems, efficient downlink CSI compression and feedback are crucial in FDD mode. Deep learning (DL)-based methods surpass traditional compressed sensing but often rely on CNNs designed for im…
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Wavelet Transform

Mathematical technique used in data compression and analysis

In mathematics, a wavelet series is a representation of a square- integrable (real- or complex-valued) function by a certain orthonormal series generated by a wavelet. This article provides a formal, mathematical definition of an orthonormal wavelet and of the integral wavelet transform.

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WTSCNet: A CSI Feedback Network Based on Wavelet Transform Convolution and Attention Mechanism
2025
<title>Abstract</title> To enhance the performance of massive MIMO systems, efficient downlink CSI compression and feedback are crucial in FDD mode. Deep learning (DL)-based methods surpass traditional compressed sensing but often rely on CNNs designed for image processing, neglecting essential channel and spatial information. This paper proposes WTSCNet, a novel CSI feedback network integrating wavelet transform convolution and attention mechanisms to balance network complexity and feature extraction. The encoder…
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