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Course10810409857 lectures

Principles of Communication Systems - II

Prof. Aditya K. Jagannatham · IIT Kanpur

Start with lecture 1 At NPTEL

Lectures

Week-1

  1. Introduction to Digital Communication Systems Video
  2. Spectrum of Transmitted Digital Communication Signal and Wide Sense Stationarity Video
  3. Spectrum of Transmitted Digital Communication Signal, Autocorrelation Function and Power Spectral Density Video
  4. Spectrum of Transmitted Digital Communication Signal, Relation to Energy Spectral Density and Introduction to AWGN Channel Video
  5. Additive White Gaussian Noise (AWGN) Properties, Gaussian Noise and White Noise Video
  6. Structure of Digital Communication Receiver, Receiver Filter and Signal-to-Noise Power Ratio (SNR) Video
  7. Digital Communication Receiver, Noise Properties and Output Noise Power Video

Week-2

  1. Digital Communication Receiver, Optimal SNR and Matched Filter Video
  2. Probability of Error in Digital Communication and Probability Density Functions of Output Video
  3. Probability of Error in Digital Communication, Optimal Decison Rule and Gaussian Q function Video
  4. Introduction to Binary Phase Shift Keying (BPSK) Modulation, Optimal Decision Rule and Probability of Bit-Error or Bit-Error Rate (BER) Video
  5. Introduction to Amplitude Shift Keying (ASK) Modulation Video
  6. Optimal Decision Rule for Amplitude Shift Keying (ASK), Bit Error Rate (BER) and Comparison with Binary Phase Shift Keying (BPSK) Modulation Video
  7. Introduction to Signal Space Concept and Orthonormal Basis Signals Video

Week-3

  1. Introduction to Frequency Shift Keying (FSK) Video
  2. Optimal Decision Rule for FSK, Bit Error Rate (BER) and Comparison with BPSK, ASK Video
  3. Introduction to Quadrature Phase Shift Keying (QPSK) Video
  4. Waveforms of Quadrature Phase Shift Keying (QPSK) Video
  5. Matched Filtering, Bit Error Rate and Symbol Error Rate for Quadrature Phase Shift Keying (QPSK) Video
  6. Introduction to M-ary PAM (Pulse Amplitude Modulation), Average Symbol Power and Decision rules Video
  7. M-ary PAM (Pulse Amplitude Modulation) -Part-II, Optimal Decision Rule and Probability of Error Video

Week-4

  1. M-ary QAM (Quadrature Amplitude Modulation) Part-I, Introduction, Transmitted Waveform and Average Symbol Energy Video
  2. M-ary QAM (Quadrature Amplitude Modulation) - Part-II, Optimal Decision Rule, Probability of Error and Contellation Diagram Video
  3. M-ary PSK (Phase Shift Keying) Part-I, Introduction , Transmitted Waveform and Constellation Diagram Video
  4. M-ary PSK (Phase Shift Keying) - Part- II, Optimal Decision Rule, Nearest Neighbor Criterion and Approximate Probability of Error Video
  5. Introduction to Information Theory, Relevance of Information Theory and Characterization of Information Video
  6. Definition of Entropy, Average of Information / Uncertainity of source and Properties of Entropy Video
  7. Entropy Example- Binary Source Maximum and Minimum Entropy of Binary Source Video

Week-5

  1. Maximum Entropy of Source with M-ary Alphabet, Concave/Convex Functions and Jensens Inequality Video
  2. Joint Entropy , Definition of Joint Entropy of Two Sources and Simple Examples for Joint Entropy Computation Video
  3. Properties of Joint Entropy and Relation between Joint Entropy and Marginal Entropies Video
  4. Conditional Entropy, Example of Conditional Entropy and Properties of Conditional Entropy Video
  5. Mutual Information, Diagrammatic Representation and Properties of Mutual Information Video
  6. Simple Example of Mutual Information and Practical Example of Mutual Information-Binary Symmetric Channel Video
  7. Channel Capacity, Implications of Channel Capacity, Claude E. Shannon- Father of Information Theory and Example of Capacity of Binary Symmetric Channel Video

Week-6

  1. Differential Entropy and Example for Uniform Probability Density function Video
  2. Differential Entropy of Gaussian Source and Insights Video
  3. Joint Conditional/ Differential Entropies and Mutual Information Video
  4. Capacity of Gaussian channel- Part I Video
  5. Capacity of Gaussian Channel Part-II, Practical Implications and Maximum rate in bits\sec Video
  6. Introduction to Source Coding and Data Compression, Variable Length codes and Unique Decodability Video
  7. Uniquely Decodable Codes, Prefix-free code, Instantaneous Code and Average Code length Video

Week-7

  1. Binary Tree Representation of Code, Example and Kraft Inequality Video
  2. Lower Bound on Average Code Length and Kullback-Leibler Divergence Video
  3. Optimal Code length, Constrained Optimization and Morse Code Example Video
  4. Approaching Lower Bound on Average code length and Block Coding Video
  5. Huffman Code, Algorithm, Example and Average Code Length Video
  6. Introduction to channel coding, Rate of Code, Repetition Code and Hamming Distance Video
  7. Introduction to Convolutional Codes, Binary Field Arithmetic and Linear Codes Video

Week-8

  1. Example of Convolutional Code Output and Convolution Operation for Code generation Video
  2. Matrix Representation of Convolutional Codes, Generator Matrix, Transform Domain Representation and Shift Register Architecture Video
  3. State Diagram Representation of Convolutional Code, State transitions and Example of Code Generation using State transitions Video
  4. Trellis Representation of Convolutional Code and Valid Code Words Video
  5. Decoding of the Convolutional Code, Minimum Hamming distance and Maximum Likelihood Codeword Estimate Video
  6. Principle of Decoding of Convolutional code Video
  7. Viterbi Decoder for Maximum Likelihood Decoding of Convolutional Code Using Trellis Representation, Branch Metric Calculation, State Metric Calculation and Example Video

Live Session

  1. Live Session 09-11-2019 Video

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT Kanpur
Department
Electrical Engineering
Teacher
Prof. Aditya K. Jagannatham
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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