February 2020
Beginner
621 pages
19h 34m
English
book
Introduction to Cryptography with Coding Theory, 3rd Edition
by Wade Trappe, Lawrence C. Washington
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24.4 Linear Codes
When you are having a conversation with a friend over a cellular phone, your voice is turned into digital data that has an error correcting code applied to it before it is sent. When your friend receives the data, the errors in transmission must be accounted for by decoding the error correcting code. Only after decoding are the data turned into sound that represents your voice.
The amount of delay it takes for a packet of data to be decoded is critical in such an application. If it took several seconds, then the delay would become aggravating and make holding a conversation difficult.
The problem of efficiently decoding a code is therefore of critical importance. In order to decode quickly, it is helpful to have some structure ...
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