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Consider a PCM communication system with the following specifications: • Data bandwidth: 4 kHz. Sampling rate: 20% over the Nyquist rate. Quantization levels: 8. • Line code: Polar nonreturn-to-zero (NRZ). • Transmission nower: 12 mW

Consider a PCM communication system with the following specifications: • Data bandwidth: 4 kHz. Sampling rate: 20% over the Nyquist rate. Quantization levels: 8. • Line code: Polar nonreturn-to-zero (NRZ). • Transmission nower: 12 mW

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Consider a PCM communication system with the following specifications: • Data bandwidth: 4 kHz. • Sampling rate: 20% over the Nyquist rate. • Quantization levels: 8. • Line code: Polar nonreturn-to-zero (NRZ). • Transmission power: 12 mW. • Bit transmission probability: Po = 20%. • Channel noise PSD: 5 µW. If a matched filter (MF) is used at the receiver with a normalising factor of c = 1/AT,, find the following:
Transcribed Image Text:Consider a PCM communication system with the following specifications: • Data bandwidth: 4 kHz. • Sampling rate: 20% over the Nyquist rate. • Quantization levels: 8. • Line code: Polar nonreturn-to-zero (NRZ). • Transmission power: 12 mW. • Bit transmission probability: Po = 20%. • Channel noise PSD: 5 µW. If a matched filter (MF) is used at the receiver with a normalising factor of c = 1/AT,, find the following:
1. Find the bit rate Rp kbps. Find the transmission bandwidth BT kHz. 3. BFind the bit period 76 msec. Find the bit period A %3D V. 5. Find the noise variance after MF, o2 W. 6. The optimal detection threshold, Yopt V. 7. The BER = Hint: Use the approximation „2 2 Q(x) = e
Transcribed Image Text:1. Find the bit rate Rp kbps. Find the transmission bandwidth BT kHz. 3. BFind the bit period 76 msec. Find the bit period A %3D V. 5. Find the noise variance after MF, o2 W. 6. The optimal detection threshold, Yopt V. 7. The BER = Hint: Use the approximation „2 2 Q(x) = e
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