Abstract
We consider the problem of synchronisation (i.e. carrier phase and symbol timing recovery) and decoding in coded systems, especially turbo-coded systems. We introduce a new concept 'a-priori probability aided estimation', where the log-Likelihood ratio obtained from a MAP decoder (as used in turbo-decoding) is used to aid estimation in an iterative synchroniser/decoder. We illustrate this in detail with reference to carrier recovery in a turbo-coded BPSK system, and demonstrate a substantial performance advantage over conventional separate synchronisation and decoding.
| Original language | English |
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| Pages (from-to) | 414 |
| Number of pages | 1 |
| Journal | IEEE International Symposium on Information Theory - Proceedings |
| Publication status | Published - 2002 |
| Event | 2002 IEEE International Symposium on Information Theory - Lausanne, Switzerland Duration: 30 Jun 2002 → 5 Jul 2002 |