What is the bandwidth efficiency for FSK, ASK, PSK andQPSK for a bit error rate of 10-7 on a channel with an SNR of 12 dB?

For FSK, the bit rate is equal to the baud rate (symbols/seconds).Group of answer choicesTrueFalse

FSK technique needs higher bandwidth and immune to noise so it is preferred in free band wireless communication.Group of answer choicesTrueFalse

Analyze 16-QAM, 32-PSK and 8-FSK in terms of PSD, data rate,signal space.Elaborate with mathematical analysis using necessaryequations and graphical illustrations for all modulation schemesi. Conclude which would be a appropriate choice if a power efficientscheme is required for a application.ii. If bandwidth efficiency was more important would your choiceof modulation still be the same. VX'hy.

1. The minimum channel Bandwidth is used by which modulation technique?A. VSBB. DSB-SCC. FMD. SSB-SC

49. A channel has a bit rate of 20 kbps. The stop and wait protocol with frame size 4500 bits is used. The delay for error detection and sending ACK by the receiver is 0.25 seconds because of a fault. Find the maximum efficiency of the channel if the destination is 30000km away and the speed of the propagation of the signal is 2.8X108 m/s. Find the decrease in efficiency due to the fault