With this parameters, the channel would add or remove energy.

[lhao-sudo]

Traceback (most recent call last): File "C:/Users/lihao/Desktop/ofdm_v1.py", line 169, in OFDM_simulation() File "C:/Users/lihao/Desktop/ofdm_v1.py", line 136, in OFDM_simulation OFDM_RX = channel(OFDM_TX, SNRdb, "tdl") File "C:/Users/lihao/Desktop/ofdm_v1.py", line 81, in channel channel = SISOFlatChannel(None,(1+0j,1+0j)) File "C:\Users\lihao\AppData\Local\Programs\Python\Python310\lib\site-packages\commpy\channels.py", line 179, in init self.fading_param = fading_param File "C:\Users\lihao\AppData\Local\Programs\Python\Python310\lib\site-packages\commpy\channels.py", line 231, in fading_param raise ValueError("With this parameters, the channel would add or remove energy.") ValueError: With this parameters, the channel would add or remove energy.