Efficient iterative receiver for Bit-Interleaved Coded Modulation according to the DVB-T2 standard

Abstract : Bit-Interleaved Coded Modulation (BICM) offers a significant improvement in error correcting performance for coded modulations over fading channels compared to the previously existing techniques. Iterative processing at the receiver side can provide additional improvement to the BICM performance. In this paper, an efficient shuffled iterative receiver is investigated for the second generation of the terrestrial digital video broadcasting standard DVB-T2. The main contribution is scheduling an efficient message passing algorithm with low latency between the demapper and the LDPC decoder. A BER performance comparison between a fixed-point version that considers architectural constraints and a theoretical version over a fading channel with erasure is presented. It validates the potential of iterative receiver as practical and competitive solution for the DVB-T2 standard.