snr and eb no
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Dear all, I want to know what exactly the difference between SNR and Eb/No? In my system, I'm assuming the values of SNR, how I can calculate Eb/No from this?
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Daniel Shub
2011-6-27
In general the E/N0 notation denotes the signal energy over the spectrum level of the noise. As for differences between SNR and E/N0:
E/N0 depends on the duration of the signal E/N0 does not depend on the bandwidth of the noise
To get E/N0 from the SNR, you also need to know the duration of the signal and the noise bandwidth.
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Daniel Shub
2011-6-27
E/N0 does not depend on the noise bandwidth, but the SNR does. SNR is the ratio of signal power to noise power. Signal energy (E) is equal to the signal power (P_s) times duration (T) (i.e., E = P_s*T). Assuming the noise is white, the noise power (P_n) is the spectrum level (N0) times the bandwidth (BW) (i.e., P_n = N0*BW). So if you have P_s/P_n (i.e., the signal to noise ratio), T and BW, you should be able to solve for E/N0.
E/N0 = (P_s*T)/(P_n/BW) = (P_s/P_n)*T*BW = SNR*T*BW
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