Q1)N voice channel multiplex on a PCM/QAM system with quantization level =16. The band width of each cannel =3 KHz, and the Baud rate = 300 ksymbol/sec. Determine the number of input channel (N).
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Solved in 2 steps
- Two M-QAM modulation schemes, 16-QAM and 64-QAM, having equal error performance (I.e same value of Pbe). SNR-13 dB 16-QAM system. Calculate the E/N, in 64-QAM system. Compare the results. What are the maximum transmission rate (free from ISI problem) in both modulation schemes? Assume B=20 kHz.Two M-QAM modulation schemes, 16-QAM and 64-QAM, having equal error performance (i.e same value of Pbe). SNR=10 dB in 16-QAM system. (a) Calculate the Eb/No in 64-QAM system. Compare the results. (b) What are the maximum transmission rate (free from ISI problem) in both modulation schemes? Assume B=20 kHz.Q2] Two M-QAM modulation schemes, 16-QAM and 64-QAM, having equal error performance (i.e same value of Pbe). SNR=10 dB in 16-QAM system. Calculate the Eb/No in 64-QAM system. Compare the results.
- 15. How many OC signals are used in a SONET network with a 622.08 Mbps line rate?A. 8064B. 4C. 12D. 8For a PCM system, the value of the minimum transmission bandwidth is 25 kHz and the maximum frequency of the input waveform is 5 kHz. Estimate the total number of levels in the uniform quantizer present.For a PCM system with the following parameters, Parameters: (i) Maximum analog input frequency = 5 kHz; (ii) Maximum decoded voltage at the receiver = ±5.01 V; (iii) Minimum dynamic range = 54 dB. (Use 2 decimal places) a) What is the coding efficiency in % b) What is the resolution in V? c) Determine the maximum quantization error in V.
- Consider that the maximum voltage (Vmax) of the AM modulated carrier is 30V and the minimum voltage (Vmin) is 10V, so the modulation index will be:What will be the minimum transmission bandwidth of a PCM system if the number of bits per sample is 8 and the maximum frequency of the analog signal is 4.5 kHz?Design an 8-to-1-line multiplexer using a 3-to-8 line decoder and external gates.
- For a PCM system with the following parameters, Parameters: (i) Maximum analog input frequency = 5 kHz; (ii) Maximum decoded voltage at the receiver = ±5.01 V; (iii) Minimum dynamic range = 54 dB. (Use 2 decimal places) a) What is the coding efficiency in % b) What is the resolution in V? c) Determine the maximum quantization error in V. d) Determine the minimum sampling rate in KHz e)Determine minimum number of bits use for the PCM code excluding sign bit.Find the following: a.) Avs b.) Av c.) Ai The two-port parameters for the fixed-bias configuration are Zi =1.071 K ohms, Zo=3 K ohms, and AvNL= -280.11. Note: 3 decimal places for the answersIf in a PCM system, uniform quantizer having total 256 steps is being used, then what will be the number of transmitted bits per sample?