Forums

shannon capacity limit

Started by omg January 9, 2006
base on the shannon capacity limit,dicuss the possibility of transmitting
information when siganl is lower than the noise?

some ways of trasmitting would be be spreading the specturm,using reed
coding method.

what are some other ways to transmit information when signal is lower
than
the noise

I guess you are interested in "near shanon limit" transmission. You may
search some papers on "LDPC" coding and also "Turbo" coding but it
depends on your channel.

eg. A. Near Shannon limit performancd of low density parity check
codes. David JC MacKay,Cavendish Laboratory, Cambridge University
    B. C. Berrou, A Glavieux, and P. Thitimajshima, Near Shannon Limit
Error-Correcting
Coding

I am not sure what you are refering to "Reed" coding - probably, you
might have tried  the  "Reed-Solomon" coding to get expected results!

Cheers
Santosh
omg wrote:
> base on the shannon capacity limit,dicuss the possibility of transmitting > information when siganl is lower than the noise? > > some ways of trasmitting would be be spreading the specturm,using reed > coding method. > > what are some other ways to transmit information when signal is lower > than > the noise