Multiple parallel concatenated codes with optimal puncturing and energy distribution
Paper i proceeding, 2005
In this paper we show how to find optimal energy
distribution together with optimal puncturing ratios for parallel
concatenated codes with two or more constituent codes. The
energy distribution and the puncturing ratios are optimal in
terms of minimizing the average signal-to-noise ratio convergence
threshold. The extrinsic information transfer functions of the constituent
codes are used for the optimization. Using this technique
we obtain additional degrees of freedom for constructing codes
with low convergence thresholds over a large range of code rates.