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RE: ECC limits? (was RE: An alternative to TCP ...)

2001-02-09 18:20:03
Yes, in theory you may obtain an arbitrary residual rate for any given
input rate + overhead, if you are willing to make your codes long
enough. That may quickly become a tad pricy, however. There is also the
additional problem that most demonstrations assume errors are randomly
distributed. If the error distribution is heavy tailed, which is the
case on very many technologies, all bets are off... This is one of the
ways to not achieve the desired result.

-- Christian Huitema

-----Original Message-----
From: James P. Salsman [mailto:bovik(_at_)best(_dot_)com] 
Sent: Friday, February 09, 2001 4:22 PM
To: Christian Huitema
Cc: ietf(_at_)ietf(_dot_)org
Subject: ECC limits? (was RE: An alternative to TCP ...)


... To reach 10 Gbps, you will need a BER of 1.E-14....
There are very many ways to not achieve that....

Are there any limits to what error correcting codes can provide?

If you have 15 Gbps with a natural error rate of 1 in 100, 
I think you can still get better than 1 in 1e14 bit errors 
at 10 Gbps with traditional techniques such as Reed-Solomon.

Please correct me if I am wrong.

Cheers,
James




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