utcsilab / score-based-channels

Source code for paper "MIMO Channel Estimation using Score-Based Generative Models", published in IEEE Transactions on Wireless Communications.
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Hyperparameters notation and SNR mismatch #3

Closed nzilberstein closed 1 year ago

nzilberstein commented 1 year ago

Hi, I have the following two observations:

1) According to step 3, we need to run the hyper-parameter script to find the beta and N. However, it is not clear what is N: in the paper, it used for the amount of samples in the training process, but it seems that for the hyper-paremeter tunning it corresponds to another thing. Is N denoting the inference steps?

2) When I run the inference code, I have a mismatch with the SNR: it seems that it is shifted 15dB wrt the results in the paper. Is there something to change?

Thanks in advance!