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Delayed bit interleaved coded modulation

In this paper, bit interleaved coded modulation with the mapping of different delayed codewords onto the same signals is investigated. This scheme is referred to as delayed bit interleaved coded modulation (DBICM) and the principles of its coding and decoding are presented. Simulation results show that a coding gain of 0.7 dB and 0.5 dB can been achieved by DBICM with soft information over conventional BICM for 8-ASK and Half 16-QAM, respectively.