Figure 3From: A novel method for sparse channel estimation using super-resolution dictionaryModulus of the expansion coefficients for DFT basis. Since the fading of sinc(x) and dir N (x) is slow, a lot of coefficients should not be neglected which decrease the sparsity of the channel. The parameters are P=10, NCP=16, K=256, and L=16. η q , τ/T s , and v q T s N0 are random variables.Back to article page