# signal to noise ratio

Power in signal divided by power in noise.

Alternatively from algebra,

\begin{equation} \gamma = \frac{P}{NB} \end{equation}

Where \(N\) is the power spectral density of the noise (so, flat for awgn), and \(B\) is bandwidth.

Power in signal divided by power in noise.

Alternatively from algebra,

\begin{equation} \gamma = \frac{P}{NB} \end{equation}

Where \(N\) is the power spectral density of the noise (so, flat for awgn), and \(B\) is bandwidth.