Near Shannon Limit Performance of Low Density Parity Check Codes
David J C MacKay and Radford M Neal
We report the empirical performance of Gallager's low density
parity check codes on Gaussian channels. We show that
performance substantially better than that of standard textbook
codes can be achieved.
The codes are simple and practical and it is remarkable that they
have been generally neglected since 1963.
published in Elec. Lett.