ANNA University Digital Communication Notes

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Syllabus:
 
UNIT I DIGITAL COMMUNICATION SYSTEM 8
Introduction to Analog Pulse Communication Systems – Digital Communication Systems– Functional description, Channel classification, Performance Measure; Geometric representation of Signals, Bandwidth , Mathematical Models of Communication Channel.

UNIT II BASEBAND FORMATTING TECHNIQUES 10
Sampling – Impulse sampling, Natural Sampling, Sampler Implementation; Quantisation – Uniform and Non-uniform; Encoding Techniques for Analog Sources- Temporal waveform encoding, Spectral waveform encoding, Model-based encoding, Comparison of speech encoding methods.

UNIT III BASEBAND CODING TECHNIQUES 9
Error Control Codes - Block Codes , Convolutional Codes, Concept of Error Free
Communication; Classification of line codes, desirable characteristics and power spectra of line codes.

UNIT IV BASEBAND RECEPTION TECHNIQUES 9
Noise in Communication Systems; Receiving Filter – Correlator type, Matched Filter type; Equalising Filter - Signal and system design for ISI elimination, Implementation,Eye Pattern analysis; Synchronisation; Detector – Maximum Likelihood Detector, Error Probability, Figure-of-Merit for Digital Detection.

UNIT V BANDPASS SIGNAL TRANSMISSION AND RECEPTION 9
Memory less modulation methods - Representation and Spectral characteristics, ASK,PSK, QAM, QPSK, FSK; Bandpass receiving filter, Error performance – Coherent and Non-coherent detection systems. 


You Can Download The Material Of DC From The Below Link
 
 
http://www.mediafire.com/view/n9qpj7f7dme78gz/digital%20comm.pdf

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