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AWGN channel cascade with Rayleigh Channel in Simulink

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Hi

I am new to digital communications and simulink.

I have a simulink file that works with AWGN channel. However when I cascaded it with a Rayleigh channel it gave me this error:
"Error reported by S-function 'scommultwithprop2' in 'PSK/Multipath Rayleigh Fading Channel/Multipath Fading Channel/Multiply with back propagation/S-Function':
Port complexity propagation error"

I searched the error message with no luck.

Does anyone know how to solve this problem?

Thanks a lot.

Paul
 

could you please upload your design so that some body can help you.
 

Upload

1) the pic of the model
2) the pic of the settings for the AWGN
3) the pic of the settings for the RFC
4) the pic of the error that you are getting
5) the simulink model

so that I can help you without spending too much of my time

You must be doing something wrong to get this error or the Matlab/Simulink installed just got corrupted
 

Hi

Thank you both so much for your replies.

I am attaching a simplified simulink file that shows AWGN channel cascaded with Rayleigh and Rician Channels - they gave me the same error.

Thanks,

Paul
 

Hi everyone

Sorry about the delay but here is a picture of the model with AWGN and Rayleigh fading channels with error message...

Could anyone advise me what is causing the error?

Thanks a lot.

Paul
 

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