EC2301 - Digital Communication_Handwritten notes

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.

TOTAL: 45 PERIODS
 
TEXT BOOKS:
1.    Amitabha Bhattacharya, "Digital Communications", Tata McGraw Hill, 2006.
2.     Simon Haykin, "Digital Communications", John Wiley, 2006.
REFERENCES:
1.    John.G. Proakis, "Fundamentals of Communication Systems", Pearson Education, 2006.
2.    Michael. B. Purrsley, "Introduction to Digital Communication", Pearson Education, 2006.
Bernard Sklar, Digital Communication, 2nd Edition, Paerson Education, 2006

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