i. DIGITAL COMMUNICATION FIRST TERM: 1. SPECIAL ANALYSIS : Correlation between wave forms power and cross correlation, Autocorrelation, Autocorrelation of a periodic waveforms. 2. RANDOM VARIABLES: Introduction, Discrete and continuous, Random variables. Cumulative Distribution function. Probability Density Function, Relation between probability and Probability Density. Joint cumulative Distribution and probability Density. Random processes. 3. DIGITAL MODULATION TECHNIQUES: (i) Binary Phase shift Keying-Generation and Reception. (ii) Differential phase shift keying-Generatic a DPSK signal, Recovering data from the DPSK signal. (iii) Quadrature phase shift keying: Principal of generation of QPSK signal. QPSK Receiver. (iv) Binary Frequency shift keying: Generation of BFSK signal. Receiver for BFSK singal. 4. Multiplexing PCM signals: The T1 Digital system. SECOND TERM: 5. Base-band signal Receiver: Concept of the Matched Filter, Impulse Response and Probability of Error of the Matched Filter. 6. CODING: (i) Coding to increase average information per bit-Shannon Fano Algorithm. (ii) Coding for Error detection. Hamming Distance. (iii) Introduction to Voice Coders: Channel Vocoders, Speech model used in vocoders. 7. FUNDAMENTALS OF TELEPHONE SWITCHING: Elemental Phone system, central Switching. Time slot Interchanging. Space Switching. Space Array for Digital Signals. Combined space and Time Switching. Mobile Telephone Communication - The Cellular concept.