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The following question is related to digital communication systems.

I am studying two systems operating at the same time and on the same frequency. Each system consists of one transmitter and one receiver. However, one of them, let us say system 1, is using channel coding with code rate Rc, while the other one (system 2) is not. Let SNR1 and SNR2 denote the signal-to-noise ratio (SNR) per uncoded symbol at system 1's and system 2's receivers, respectively, when no interference is present.

I want to quantify SINR1 and SINR2, where SINRi is the signal-to-interference-plus-noise ratio (SINR) at system i's receiver. Is the following correct:

[tex]SINR_1=\frac{SNR_1\,R_c}{1+SNR_2}[/tex]

and

[tex]SINR_2=\frac{SNR_2}{1+SNR_1\,R_c}[/tex]

?

Thanks

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# Coded system interference

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