a. A communication network has a bandwidth of 10 kHz. Calculate the signal-to-noise ratio in dB if the capacity of the channel is 100 Kbps.
b. A communications channel with a bandwidth of 4 kHz has a signal power-to-noise ratio of 7. Determine the channel capacity.
c. The bandwidth in b above is reduced by 25%. How much should the signal power be increased to maintain the same channel capacity?