An Introduction to Coding Theory
An Introduction to Coding Theory. Instructor: Dr. Adrish Banerjee, Department of Electrical Engineering, IIT Kanpur. Error control coding is an indispensable part of any digital communication system. In this introductory course, we will discuss theory of linear block codes and convolutional codes, their encoding and decoding techniques as well as their applications in real world scenarios. Starting from simple repetition codes, we will discuss among other codes: Hamming codes, Reed Muller codes, low density parity check codes, and turbo codes. We will also study how from simple codes by concatenation we can build more powerful error correcting codes. (from nptel.ac.in)
Lecture 31 - Convergence of Turbo Codes |
In this lecture we describe three different measures for convergence analysis of turbo codes namely, El Gamal's method based on SNR, Divsalar et. al. method based on density evolution and ten Brink's approach based on EXIT charts. Then we show how to draw the transfer characteristics of turbo decoder and use it to compute decoding threshold under iterative decoding.
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