Skip to content
Skip to main content

About this free course

Download this course

Share this free course

Exploring communications technology
Exploring communications technology

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

2.3 Summary

In this part you have seen examples of the two broad categories of error control codes: an error detecting code (the EAN-13 code) and an error correcting code (RS code).

All error control involved the addition of redundancy to a message. If the number of message bits (or bytes) is k, and the augmented length after the addition of redundancy is n bits (or bytes), the ratio k/n is the code rate.