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Advanced Topics in Digital Communications


Prof. Dr.-Ing. Volker Kühn



Summer Semester V3/S1


Basic knowledge of digital communications




Presentation with discussion

Credit Points




  • Learning basic approaches and results from Information theory for modern communication systems, in particular relay systems
  • Results will be jointly derived
  • Presentation of selected topic

Content (slides available via StudIP!)

Stochastic Processes


  • Probabilities and Probability Densities
  • Moments, Correlations
  • Central Limit Theorem

Introduction to digital Communications


  • Structure of digital Communication System
  • Digital Modulation
  • Performance for AWGN and Fading Channels

Introduction to Information Theory


  • Definition of Entropy and Mutual Information
  • Shannon's Channel Coding Theorem
  • Channel capacity of AWGN Channel
  • Ergodic and Outage Capacity of Fading Channels

Multi-User Information Theory


  • Multiple Access Techniques (TDMA, FDMA, CDMA, SDMA)
  • Capacity Regions, Sum Rate
  • Detection Strategies

Relay Systems


  • Introduction to Relay Communications
  • Relay Protocols (AF, DF, CF and related Protocols)
  • Capacity Bounds of Relay Systems



  • D. Tse and P. Viswanath: "Fundamentals of Wireless Communications", Cambridge University Press, 2005
  • Andrea Goldsmith: "Wireless Communications", Cambridge University Press, 2005
  • Peter Adam Höher: "Grundlagen der digitalen Informationsübertragung", Springer Vieweg, 2013
  • Karl-Dirk Kammeyer: "Nachrichtenübertragung", Teubner Verlag, 2008

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