Assessing the performance of turbo processing
Résumé
This talk is dedicated to the turbo principle in digital communications. In order to understand how this principle was appeared, a brief historical review will be made since the beginning of the information theory field. Second, we will answer two fundamental questions about the turbo principle: "how and why does it work?". Following the invention of the turbo, the turbo principle has been rapidly extended to other domains of application than error correcting coding, such as the estimation of channel parameters or the detection of signals degraded by interference. We will try to provide a general overview of the turbo techniques currently under investigation in the field of digital communications. Finally, a novel evaluation method, called genie-initialised iterative processing (GIIP), will be introduced to assess the error performance of iterative processing. Two examples of turbo receivers for satellite transmissions will be presented for illustration purpose