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IEEE/ICACT20230246 Slide.10        [Big Slide]       [YouTube]	Oral Presentation
	Next, let's introduce our DCNN channel estimation. In this section, we formulate the channel estimation in OTFS communication system as a residual noise cancellation problem and propose a DCNN method to enhance the extraction of the noise features by introducing hybrid dilated convolution (HDC) into CNN and achieve the noise cancellation through residual paths. Therefore, the DCNN method can improve the channel estimation accuracy specially under low signal-to-noise ratio (SNR). In the following, the DCNN method is introduced in detail.

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