Application of Expander Codes

Question

I need to give a talk about expander codes at university (I'm a student of computer science). Since they have been introduced to show a family of codes looking good when thinking of the Shannon theorem, I wonder what real world application for expander codes exist.

As far as I know one has a real hard time when encoding but decoding is quite fast. Why aren't they used to encode write only media or similar? What is their big disadvantage?

Answer 1

One area that you could consider is Fault Tolerant Parallel Computation. Expander codes and graphs could be efficiently used in them like:

Highly fault-tolerant parallel computation, by Daniel A. Spielman

On word-level parallelism in fault-tolerant computing