Digital Communications 2. Safwan El Assad
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Table of Contents
1 Cover
4 Foreword
5 PART 1: Tutorials 1 Theory of Information: Problems 1 to 15 1.1. Problem 1 – Entropy 1.2. Problem 2 – K-order extension of a transmission channel 1.3. Problem 3 – Compressed speech digital transmission and Huffman coding 1.4. Problem 4 – Coding without and with information compression 1.5. Problem 5 – Digital transmission of a TV signal (luminance component only) with information compression and Huffman coding 1.6. Problem 6 – Information, entropy, codes (1) 1.7. Problem 7 – Information, entropy, codes (2) 1.8. Problem 8 – Coding and transmission of a television-type information source 1.9. Problem 9 – Entropy and motion information encoding of multimedia source 1.10. Problem 10 – Hamming coding 1.11. Problem 11 – Cyclic coding (1) 1.12. Problem 12 – Cyclic coding (2) 1.13. Problem 13 – Cyclic coding and Hamming coding (1) 1.14. Problem 14 – Cyclic coding and Hamming coding (2) 1.15. Problem 15 – Cyclic code, M-sequences, and Gold sequences 2 Baseband Digital Transmission: Problems 16 to 26 2.1. Problem 16 – Entropy and information to signal source coding 2.2. Problem 17 – Calculation of autocorrelation function and power spectral density by probabilistic approach of RZ and NRZ binary on-line codes 2.3. Problem 18 – Calculation of the autocorrelation function and the power spectral density by probabilistic approach of the bipolar RZ code 2.4. Problem 19 – Transmission using a partial response linear coding 2.5. Problem 20 – Signal information coding and digital transmissions with partial response linear encoder 2.6. Problem 21 – Baseband digital transmission system (1) 2.7. Problem 22 – Baseband digital transmission (2) 2.8. Problem 23 – M-ary digital baseband transmission 2.9. Problem 24 – Baseband digital transmission of bipolar coded information 2.10. Problem 25 – Baseband transmission and reception using a partial response linear coding (1) 2.11. Problem 26 – Baseband transmission and reception using a partial response linear coding (2) 3 Digital Transmissions with Carrier Modulation: Problems 27 to 33 3.1. Problem 27 – Digital transmissions with carrier modulation 3.2. Problem 28 – 4-QAM digital modulation transmission (1) 3.3. Problem 29 – Digital transmissions with 2-ASK modulation 3.4. Problem 30 – 4-QAM digital modulation transmission (2) 3.5. Problem 31 – Digital transmissions with 4-QAM digital modulation: case of single and double paths propagation 3.6. Problem 32 – Performance of digital modulations and 16-QAM digital modulation 3.7. Problem 33 – QAM encoding and transmission of motion information of digital video
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PART 2: Practical Works
4 Study of the Transmission of Digital Information on Two-wire Cables
4.1. Introduction
4.2. Recall of essential results on transmission line theory
4.3. Practical study
4.4. Objectives
4.5. Measurement of the characteristic impedance Zc by a reflectometry method (Time Domain Reflectometry: TDR)
4.6. Measurement of attenuation α as a function of frequency
4.7. Variation of the attenuation α as a function of length
4.8. Measurement of the bitrate D (bit/s)
5 Study of Baseband Digital Transmission Systems for the Transmission of Analog Signals (Transmitter and Receiver)
5.1. Objectives
5.2. First part – Study of a pulse amplitude modulation and time division multiplex signal transmission system
5.3. Second part – Study of a pulse code modulation (PCM) signal transmission system and transmission error control (error detector code and error corrector code)
6 Study of On-line Codes for Baseband Modulation and Carrier Modulation
6.1. Objectives
6.2. Description of the electronic boards
6.3. First part – Study of on-line codes for baseband digital transmission
6.4. Second part – Study of digital modulations with carrier
7 Study of a QPSK Modem Under MATLAB, Simulink, Communications and DSP
7.1. Objective