[Solved]: Commonly used Error Correcting Codes

Problem Detail: 

We know error correcting codes are parameterized as (n,k,d) codes. I wanted to know the values of these parameters for some commonly used error correcting codes in computer memories or in DRAMs, etc.

I just wanted to see some values for these parameters, used in real life applications.

Asked By : Pavithran Iyer

Answered By : Ran G.

I'm sure this greatly varies according to the application and the specific code in use.

Though not for DRAMs, maybe this will give you some insights:

For CDs encoding, a (28,24)-Reed Solomon code is used.
For DVDs, it is a (208,194)-Reed Solomon code.

Symbols are over $GF(2^8)$, that is, 8 bits per symbol. The notation is $(n,k)$-ReedSolomon for a linear $[n,k,d]$ code ($k$ being the dimension). RS is an MDS code and has $d=n-k+1$.

(I think this was the source, but maybe you can find it online):
Stephan Wicker and Vijay Bhargava (eds.), Reed-Solomon Codes and their Applications, IEEE Press, 1994

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Question Source : http://cs.stackexchange.com/questions/6480