Question 2: The bandwidth of a signal is 5 kHz and we want to transmit it over a channel in PCM using Nyquist rate sampling and NRZ pulses. (a) If the available channel bandwidth is 80 kHz, what is the average signal to quantization noise ratio in dB? (b) What is the average SNR in dB at the receiver if the available channel bandwidth is again 80 kHz but the channel is noisy so that the BER at the receiver is 104? (c) If we want that the quantization noise is approximately +0.1percent of the peak to peak analog level, what is the average SNR in dB and the null channel bandwidth needed?
Question 2: The bandwidth of a signal is 5 kHz and we want to transmit it over a channel in PCM using Nyquist rate sampling and NRZ pulses. (a) If the available channel bandwidth is 80 kHz, what is the average signal to quantization noise ratio in dB? (b) What is the average SNR in dB at the receiver if the available channel bandwidth is again 80 kHz but the channel is noisy so that the BER at the receiver is 104? (c) If we want that the quantization noise is approximately +0.1percent of the peak to peak analog level, what is the average SNR in dB and the null channel bandwidth needed?
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Transcribed Image Text:Question 2:
The bandwidth of a signal is 5 kHz and we want to transmit it over a channel in PCM using
Nyquist rate sampling and NRZ pulses.
(a) If the available channel bandwidth is 80 kHz, what is the average signal to quantization
noise ratio in dB?
(b) What is the average SNR in dB at the receiver if the available channel bandwidth is again
80 kHz but the channel is noisy so that the BER at the receiver is 104?
(c) If we want that the quantization noise is approximately +0.1percent of the peak to peak
analog level, what is the average SNR in dB and the null channel bandwidth needed?
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