Error Control Coding: An Introduction to Convolutional Codes
Error Control Coding: An Introduction to Convolutional Codes. Instructor: Prof. 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 convolutional codes, their encoding and decoding techniques as well as their applications in real world scenarios. We will also study how from simple codes by concatenation we can build more powerful error correcting codes. In particular, we will study in details, one such capacity approaching codes called turbo codes. (from nptel.ac.in)
Lecture 11 - Problem Solving Session II |
In this lecture we will solve problems related to feedforward inverse of convolutional encoders. We will describe the condition for existence of a feedforward inverse of a convolutional encoder. Further, we will show that catastrophic encoders do not have a feedforward inverse. Finally, we will prove a property related to an important distance measure (column distance function) for convolutional codes.
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