Course Content

 

Part I – Principles of Digital Communications

• Model and elements of a digital communication system

• Sampling theory

• Pulse code modulation (PCM)

  • PCM generation and reconstruction

  • Quantization noise

  • Nonuniform quantizing and companding (A-law)

• Time-division multiplexing (TDM)

  • Basic concepts

  • Frame synchronization

  • Structure of the ITU-T European PDH hierarchy

  • Introduction to the ITU-T SDH hierarchy

• Base-band transmission

  • Line codes

  • Intersymbol interference

  • Equalization

  • Eye patterns

• Digital modulation techniques

  • Binary modulation systems (ASK, FSK, BPSK)

  • M-PSK and M-QAM

Part II – Microwave Radio

• Basic characteristics of microwave radio

• Frequency plans

• Free space propagation (link power budget)

• Influence of Earth surface on microwave propagation

• Influence of atmosphere on microwave propagation

  • Absorption (O₂, H₂O and rain)

  • Fading (uniform and selective)

• ITU-R recommendations for microwave radio (digital links)

• Project of a microwave radio link

Part III – Principles of Satellite Communications

• Satellite links characteristics

• Satellite links analysis (power budget)

• Multiple access techniques

Part IV – Mobile Communications

• Basic concepts of cellular radio

• Radio propagation in the mobile environment

• Fading in the mobile environment

• Network access techniques

• Frequency reuse

• Overview of the GSM system

Part V – Analog Television Systems

• Concepts of photometry

• Picture parameters

• Monochromatic video signal

  • Bandwidth

  • Video waveform

  • Transmitted signal

  • Transmitter and receiver structure

• Colour Systems

  • Concepts of colorimetry

  • The choice of video signals

  • Quadrature modulation

  • Colour bar signals

  • The PAL, NTSC and SECAM systems

Part VI – Digital Image Communication

•  Fundamentals of image compression
•  The H.261 standard for videotelephony and videoconferencing