Changes
/* Modulation Waveform and Detection */
<math> C = B \log_2 \left( 1 + \frac{S}{N} \right) </math>
where B in the bandwidth in Hz, and C is the channel capacity (maximum data rate) expressed in bits/s.
The spectral efficiency of the channel is defined as
<math> \eta = \log_2 \left( 1 + \frac{S}{N} \right) </math>
The quantity E<sub>b</sub>/N<sub>0</sub> is the ratio of energy per bit to noise power spectral density. It is a measure of SNR per bit and is calculated from the following equation:
