Digital Communications

An introduction into the basics and mathematical fundamentals of digital communications is given. The lecture covers the following topics:

• Introduction
• Equivalent Complex Baseband
• Pulse-Amplitude Modulation (PAM)
• Variants of PAM Transmission Schemes
• Signal-Space Representation
• Digital Frequency and Phase Modulation
• Channel Models
• Equalization of Dispersive Channels
• Orthogonal Frequency-Division Multiplexing (OFDM)

Basic knowledge in the fields of

• of signals and systems
  (Fourier and z transform; sampling theorem; random variables and stochastic processes)
• fundamentals of (analog and digital) communications
  (linear modulation formats; maximum-likelihood and maximum a-posteriori estimation; bandwidth and power efficiency)

is assumed.

Subsequently literature for further reading or to acquire the prerequisites for the course is listed. The "Semesterapparat" for this lecture can be found at here.

Basics on Communications:

• S. Haykin. Communication Systems. John Wiley & Sons, Inc., New York, 3rd edition, 1994.
• J.P. Proakis, M. Salehi. Communication Systems Engineering. Prentice Hall, Upper Saddle Rive, NJ, 2nd edition, 2002.
• J.B. Anderson, R. Johannesson. Understanding Information Transmission. Wiley-IEEE Press, Piscataway, NJ, 2005.
• K.D. Kammeyer. Nachrichtenübertragung. B.G. Teubner, Stuttgart, 4. Auflage, 2008.
• M. Bossert. Einführung in die Nachrichtentechnik. Oldenbourg, München, 2012.
• J. Lindner. Informationsübertragung. Springer, Berlin, 2005.

Digital Communications:

• J.G. Proakis. Digital Communications. McGraw-Hill, New York, 4th edition, 2000.
• J.B. Anderson. Digital Transmission Engineering. Wiley-IEEE Press, Piscataway, NJ, 2nd edition, 2005.
• R.E. Blahut. Modem Theory–An Introduction to Telecommunications. Cambridge University Press, Cambridge, 2009.
• R.E. Blahut. Digital Transmission of Information. Addison-Wesley, Reading, MA, 1990.
• J.R. Barry, E.A. Lee, D.G. Messerschmitt. Digital Communication. Kluwer Academic Publishers, Boston, 3rd edition, 2003.
• N. Benvenuto, G. Cherubini. Algorithms for Communications Systems and their Application. John Wiley & Sons, Inc., New York, 2002.
• A. Lapidoth. A Foundation in Digital Communications. Cambridge University Press, Cambridge, 2009.
• J.M. Wozencraft, I.M. Jacobs. Principles of Communication Engineering. John Wiley & Sons, Inc., New York, 1965.

Stochastic Processes:

• A. Papoulis, S.U. Pillai. Probability, Random Variables and Stochastic Processes. McGraw-Hill, New York, 4th edition, 2002.
• H.L. Van Trees. Detection, Estimation, and Modulation Theory, Part III: Radar-Sonar Signal Processing and Gaussian Signals in Noise. John Wiley & Sons Inc., 2001.

Special Aspects:

•  J.B. Anderson, T. Aulin, C.-E. Sundberg. Digital Phase Modulation.    Plenum Press, New York, 1986.
• R. Fischer. Precoding and Signal Shaping for Digital Transmission. John Wiley & Sons, Inc., New York, 2002.
• A. Goldsmith. Wireless Communications. Cambridge University Press, Cambridge, 2005.

The Lab Digital Communications consists of the following six experiments:

0. Introduction to MATLAB
1. Digital Pulse Amplitude Modulation
2. Implementation of PAM Transmission in MATLAB
3. Variants of PAM Transmission Schemes
4. Noncoherent Reception
5. Signal Space Representation

Depending on the number of participants, there will be one or two groups this year, probably on Wednesday (1pm to 6pm) and/or on Friday (8am to 1pm), each with up to 12 teams of 2 students. These teams will execute the six lab experiments, probably at the following dates.

The lab manual will be distributed in the lecture.