Embedded Files
SYLLABUS
SYLLABUS
MODULE 1
Analog Communication
Block diagram of a communication system. Need for analog modulation. Amplitude modulation. Equation and spectrum of AM signal. DSB-SC and SSB systems. Block diagram of SSB transmitter and receiver. Frequency and phase modulation. Narrow and wide band FM and their spectra. FM transmitter and receiver.
VEDIO PLAYLIST LINK : www.youtube.com/watch?v=8z3oJCg-_RQ&list=PLU9qGTRXUDkmGE71376J0BxbJUUFNfULG&pp=iAQB
MODULE 2
Review of Random Variables and Random Processes
Review of Random Variables and Random Processes
Review of random variables – both discrete and continuous. CDF and PDF, statistical averages. (Only definitions, computations and significance) Entropy, differential entropy. Differential entropy of a Gaussian RV. Conditional entropy, mutual information.
Stochastic processes, Stationarity. Conditions for WSS and SSS. Autocorrelation and power spectral density. LTI systems with WSS as input.
MODULE 3
Source Coding
Source coding theorems I and II (Statements only). Waveform coding. Sampling and Quantization. Pulse code modulation, Transmitter and receiver. Companding. Practical 15 level A and mu-law companders. DPCM transmitter and receiver. Design of linear predictor. Wiener-Hopf equation. Delta modulation. Slope overload.
In this video the pulse code modulation (PCM) waveform & receiver block diagram is explained in exam point of view. Important topic from Module 3 of S5 EC Analog & Digital Communication
In this video pulse code modulation (PCM) & it's Transmitter block diagram is explained in exam point of view. Repeatedly asked question
In this video pulse code modulation PCM advantages, disadvantages & Applications are explained. Module 3 frequently asked question
In this video, the concept of Delta Modulation & it's waveform and bit generation is explained. Repeatedly asked question on Analog & Digital Communication
In this video slope overload distortion & granular noise concept are explained. Also adaptive delta modulation technique briefly explained. Frequently asked topic
In this video, quantization is explained in an easy understandable way. Also discussed about tradeoff between quantization error & bandwidth
MODULE 4
G-S Procedure and Effects in the Channel
Gram-Schmitt procedure. Signal space.
Baseband transmission through AWGN channel. Mathematical model of ISI. Nyquit criterion for zero ISI. Signal modeling for ISI, Raised cosine and Square-root raised cosine spectrum, Partial response signalling and duobinary coding. Equalization. Design of zero forcing equalizer.
Vector model of AWGN channel. Matched filter and correlation receivers. MAP receiver, Maximum likelihood receiver and probability of error.
Capacity of an AWGN channel (Expression only) -- significance in the design of communication schemes.
MODULE 5
Digital Modulation Schemes
Digital modulation schemes. Baseband BPSK system and the signal constellation. BPSK transmitter and receiver. Base band QPSK system and Signal constellations. Plots of BER Vs SNR with analysis. QPSK transmitter and receiver. Quadrature amplitude modulation and signal constellation.
In this video the concept of signal space or signal constallation diagram and its significance is explained.
In this video, representation of Binary Phase Shift Keying ( BPSK) is explained, which is an important topic from Module 5
In this video, the signal constallation diagram of BPSK (Binary Phase Shift Keying) is explained. Module 5 frequently asked question
TEXTBOOK & REFERENCES
1. “Communication Systems”, Simon Haykin, Wiley.
2. “Digital Communications: Fundamentals and Applications”, Sklar, Pearson.
3. “Digital Telephony”, John C. Bellamy, Wiley
References
1. “Principles of Digital Communication,” R. Gallager, Oxford University Press
2. “Digital Communication”, John G Proakis, Wiley.
STUDY MATERIALS
STUDY MATERIALS
Module 1 notes: drive.google.com/file/d/1_0PGI8fEoCIixNiy-iGRg4OgBSkQZOn9/view?usp=sharing
Quatization error ppt :drive.google.com/file/d/1PUHzxTxdcyzZ4fEcY8BuuUTCMNQkyuE3/view?usp=sharing
Block diagram of Digital Communication ppt :drive.google.com/file/d/1vE82SH-iN5ZdzUZGyY528B87pBcB5tB7/view?usp=sharing
Materials :drive.google.com/file/d/1xkfYFtB2j0-rP9rNUC2V3GwuYyNWuU4P/view?usp=sharing
PREVIOUS YEAR UNIVERSITY QUESTION PAPERS
PREVIOUS YEAR UNIVERSITY QUESTION PAPERS
DEC 2022 :drive.google.com/file/d/1noY3tqioGCTi7Dswiuzp2cOGcjYtu7-q/view?usp=sharing
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DISCLAIMER
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