Syllabus - Analog and Digital Communication (EE-604(A))

Electrical Engineering

Analog and Digital Communication (EE-604(A))

VI-Semester

Unit-I

Review of signals and systems, Frequency domain representation of signals, Principles of Amplitude Modulation Systems- DSB, SSB and VSB modulations. Angle Modulation, Representation of FM and PM signals, Spectral characteristics of angle modulated signals.

Unit-II

Review of probability and random process. Gaussian and white noise characteristics, Noise in amplitude modulation systems, Noise in Frequency modulation systems. Pre-emphasis and Deemphasis, Threshold effect in angle modulation.

Unit-III

Pulse modulation. Sampling process. Pulse Amplitude and Pulse code modulation (PCM),Differential pulse code modulation. Delta modulation, Noise considerations in PCM, Time Division multiplexing, Digital Multiplexers.

Unit-IV

Elements of Detection Theory, Optimum detection of signals in noise, Coherent communication with waveforms- Probability of Error evaluations. Base band Pulse Transmission- Inter symbol Interference and Nyquist criterion. Pass band Digital Modulation schemes- Phase Shift Keying, Frequency Shift Keying, Quadrature Amplitude Modulation, Continuous Phase Modulation and Minimum Shift Keying.

Unit-V

Digital Modulation trade-offs. Optimum demodulation of digital signals over band-limited channels- Maximum likelihood sequence detection (Viterbi receiver). Equalization Techniques. Synchronization and Carrier Recovery for Digital modulation.

Course Outcome

Upon successful completion of this course the students will have developed following skills/abilities: Interpret, represent and process discrete/digital signals and systems. Thorough understanding of frequency domain analysis of discrete time signals. Ability to design & analyze DSP systems like FIR and IIR Filter etc. Practical implementation issues such as computational complexity, hardware resource limitations as well as cost of DSP systems or DSP Processors. Understanding of spectral analysis of the signals

Practicals

Reference Books

  • Haykin S., "Communications Systems", John Wiley and Sons, 2001.

  • Proakis J. G. and Salehi M., "Communication Systems Engineering", Pearson Education, 2002.

  • Taub H. and Schilling D.L., "Principles of Communication Systems”, Tata McGraw Hill, 2001.

  • Wozencraft J. M. and Jacobs I. M., ``Principles of Communication Engineering'',John Wiley, 1965.

  • Barry J. R., Lee E. A. and Messerschmitt D. G., ``Digital Communication'', Kluwer Academic Publishers, 2004.