In a binary digital communications systems, the bit energy required at the receiver input terminals is 50x10^-18 J
Other parameters are as follows:
Gt(dB)=24 dB
Gr(dB)= 26 dB
f= 10GHZ
d=40,000 km
Assuming direct-ray propagation, determine the minimum value of the transmitter power required if the data rate is 5 kbits/s.
Also determine the minimun value of the transmitter power required if the data rate is increased to 40 kbits/s.