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.

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. 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.

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.

Additionally, the "Semesterapparat" to this Lecture may be of interest.

The pdf files are only accessible within the university's computer network

• Tutorial on Signals and Systems
  
• Excercise Sheet 1
• Excercise Sheet 2
• Excercise Sheet 3
• Excercise Sheet 4
  
• Excercise Sheet 5
  
• Excercise Sheet 6
• Excercise Sheet 7

/fileadmin/website_uni_ulm/iui.inst.125/teaching/lectures/ComEng/2013/commeng_pam.mcommeng_pam.m Matlab demo -- PAM signals (ECB + RF signals)
commeng_phasor.m Matlab demo -- PAM phasors
sqrtcosrolloff.m Matlab function for sqrt-cos-roll-off pulse
cosrolloff.m Matlab function for cos-roll-off pulse

/fileadmin/website_uni_ulm/iui.inst.125/teaching/lectures/ComEng/2013/commeng_ex03.pdfcommeng_GramSchmidt_vectors.m Matlab demo to Gram-Schmidt procedure for vectors
commeng_GramSchmidt_signals.m Matlab demo to Gram-Schmidt procedure for signal elements

The exam inspection of the 2nd exam on October 11th will take place on Wednesday, October 30th, 15:00 h, at room 43.2.227. Please note that the 1st exam on August 15th is not available for inspection on this date.

The exam results are now available online via the LSF. See http://campusonline.uni-ulm.de/.
Note: The exam can be viewed on October 9th, 15:00h, at room 43.2.227.

The question time concerning the exam will take place on Friday, August 9, 10:00 h, at room 43.2.104.

The exam is scheduled for August 15th, 10:00h, at room 43.2.104 and October 11th, 10:00h, at room 45.2.101.
Note: There will be no exam after the winter semester.

Allowed auxiliaries (see lecture notes or official list of exams in notice board at entrance of  room H45.1):

• pencils, rulers
• non-programmable calculator
• 2 pages (A4) (one leave on both sides), hand-written by the student; no copies, printouts etc. allowed; will be collected after the exam

The lecture notes will be available on ePDS of the Fachschaft at the beginning of the semester. See http://druck.fs-et.de/.