| 摘要 |
<p>Information bits are encoded according to an outer BCH code (111) and an inner low density parity check code (115) with code rate 7/15 and a codeword length of 16200. The resulting codeword bits are bit-interleaved (120) and the interleaved bits are demultiplexed (130) into 8 sequences of bits. The 8 sequences of bits are permuted (130) according to a predetermined permutation rule: v 0 = b 2 , v 1 = b 6 , v 2 = b 0 , v 3 = b 1 , v 4 = b 4 , v 5 = b 5 , v 6 = b 3 , v 7 = b 7 and mapped onto symbols of a 256 QAM constellation (140).</p> |
