Deep Learning Based Fully Progressive Image Super-Resolution Scheme for Channel Estimation in OFDM Systems
IEEE Transactions on Vehicular Technology（2023）SCI 2区
Changan Univ
Abstract
In this paper, a fully progressive deep learning (DL) channel estimation scheme based on image super-resolution is proposed. Specifically, this scheme takes the channel response at the pilot position as a low resolution image and divides the entire estimation process into multiple stages. At each stage, the image needs to be feature extracted and upsampled to a higher resolution. By gradually increasing the resolution of the image through multiple upsampling stages, the corresponding feature and channel information contained in the image will also be improved. Simulation results demonstrate that this scheme outperforms the conventional and other DL estimation algorithms.
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Key words
Channel estimation,Estimation,OFDM,Symbols,Convolution,Feature extraction,Deep learning,deep learning (DL),fully progressive approach
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