The ten-year-old turbo codes are entering into service-ABSTRACT

In the matter of channel coding and spectral

efficiency, up to the invention of turbo codes, 3

dB or more stood between what the theory

promised and what real systems were able to

offer. This gap has now been removed, allowing

communication systems to be designed with

quasi-optimum performance. Ten years after the

first publication on this new technique, turbo

codes have commenced their practical service.