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HOW TO PASS IN EC2301 DIGITAL COMMUNICATION TIPS STUDY METHODS

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EC2301 DIGITAL COMMUNICATION ANNA UNIVERSITY PREVIOUS YEAR QUESTION PAPER COLLECTION

APRIL/MAY 2011

NOV/DEC 2011

NOV/DEC 2012

2007,2008,2009,201-,2013 COMING SOON

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EC2301 DIGITAL COMMUNICATION LECTURE NOTES

EC2301 DIGITAL COMMUNICATION LECTURE NOTES FOR ECE 5TH SEMESTER

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EC2301 DIGITAL COMMUNICATION SYLLABUS | LECTURE NOTES | QUESTION PAPER | QUESTION BANK | STUDY METHOD

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EC2301 DIGITAL COMMUNICATION SYLLABUS

EC2301 DIGITAL COMMUNICATION L T P C

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3 0 0 3

AIM:

To introduce the basic concepts of Digital Communication in baseband and passband domains and to give an exposure to error control coding techniques.

OBJECTIVES:

• To study signal space representation of signals and discuss the process of sampling, quantization and coding that are fundamental to the digital transmission of analog signals.

• To understand baseband and bandpass signal transmission and reception techniques.

• To learn error control coding which encompasses techniques for the encoding and decoding of digital data streams for their reliable transmission over noisy channels.

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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