Enhanced Max-Log-APP and Enhanced Log-APP Decoding for DVB-RCS
نویسندگان
چکیده
We present a new decoding technique for doublebinary turbo codes, such as in the Digital Video Broadcasting for Return Channel via Satellite (DVBRCS) standard. The proposed techniques are referred to as the Enhanced Max-Log A Posteriori Probability (APP) Decoding and Enhanced LogAPP Decoding. Results for ATM packets show a degradation of 0.05 dB in BER/FER for enhanced max-log-APP compared to conventional log-APP. For MPEG packets the enhanced max-log-APP outperforms the log-APP at high SNRs. For both packet lengths, enhanced log-APP outperforms log-APP at high SNRs. Simulation results for an effective early stopping criterion are also presented.
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