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IEEE/ICACT20230246 Slide.18        [Big Slide]       [YouTube]	Oral Presentation
	Finally,it is conclusion. In this paper, a DCNN based channel estimation scheme for vehicular OTFS communication system is proposed. OMP algorithm is first employed for the fast pre-estimation. In addition, HDC and residual path are combined into CNN to extract the noise features and eliminate the noise influence, which further improves the accuracy of estimation. Simulation results demonstrate that the proposed DCNN method can achieve better performance under low SNR region compared with the other conventional channel estimation schemes and show good robustness to Doppler expansion under different vehicle speeds.

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