COURSE NAME:Principles of Digital Transmission


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The module will provide an understanding of the principles and practices of modern digital transmission systems. It reviews baseband and band-pass techniques, pulse code modulation, and studies modern methods of transmission, including multiplexing and multiple access. The module introduces wired and wireless transmission techniques including those used in current broadcast and communications systems. Representative transmission systems selected for study include PCM telephony, radio, television, WiFi and communication satellites. Operation principles, link budgets and design of basic components of transmission systems are described and discussed in detail


1. Explain the principles of baseband and band-pass digital transmission.

2. Assess bit error rates for digital communication channels

3. Discuss physical layer aspects of radio networks.

4. Design and explain antenna principles.

5. Develop an RF link plan for reliable digital transmission and asses failure probability given system parameters.

6. Describe practices of modern multiplexed transmission systems.

7. Discuss the principles of digital transmission over cable and RF networks, and explain examples of current practice.

8 Explain satellite and terrestrial systems design.



  • Digital transmission principles 
  • Baseband pulse transmission, signal spectrum and bandwidth. Linear distortion, pulse reshaping, ISI and eye diagrams. Digital modulation systems: PSK and QAM. Effects of noise. Detection of digital signals, MAP detection, matched filters, decision regions. Performance assessment. Constellation diagrams, MER, Error control coding.
  • The EM spectrum and management. 
  • Comparison of wired and wireless transmission systems. 
  • Physical Layer components, radio propagation and antennas, multiple input multiple output (MIMO) links.
  • RF link planning for reliable digital transmission and evaluation of failure probability given system parameters, including link budget and Fresnel Zone calculations. 
  • Communication satellites: geo-stationary/LEO/MEO orbits, frequency allocations, FDMA, TDMA, CDMA. 
  • Transmission Systems: point to point RF, broadcast Radio & TV, cellular comms networks, WiFi, DSL, PCM telephony, optical fibre.
    • 5 Day(s)

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