Re: Reed solomon with erasures

On Jul 11, 11:53 am, "shimi" <itzic...@xxxxxxxxx> wrote:
Hello,

I'm interested in using RS- Reed solomon codes with erasures.

I know the RS code can correct 2g+e=n-k, where g is erasure and e is
error.

My system can find the erasures with high probability.
My question is, if the system can detect X erasures but 50% of them are
correct.
Meaning they were mistakenly detected as erasures.
Will I earn something using decoder with erasure or using regular decoding
?

Another question, if from the X erasures 75% are correct.
Will I earn something ?

thanks

Itzic

Probably depends upon the error rate of the mistakenly-classified
bits. If all of the bits that your receiver incorrectly marks as
erasures are correct, then you would be best served to include them.
If the error rate is high for those bit positions, then you're best
off just marking them as erasures. Other error rates give you a case
in between the two extremes. Do you have any more information?

Jason
.

Relevant Pages

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