impact of modulation on spectral efficiency.

Impact of Modulation on Spectral Efficiency 

modulation has a significant impact on spectral efficiency. Spectral efficiency is a measure of how quickly data can be transmitted in an assigned bandwidth, and it is typically measured in bits per second per Hertz (b/s/Hz) 

.The spectral efficiency with respect to modulation is defined as the net bit rate divided by the bandwidth in hertz of a communication channel or a data link. This means that the modulation efficiency directly affects the amount of useful information that can be transmitted within a given bandwidth