Bit interleaver for low-density parity check codeword having length of 16200 and code rate of 3/15 and 16-symbol mapping, and bit interleaving method using same

A bit-interleaved coded modulation (BICM) reception method, comprising:

• performing demodulation corresponding to 16-symbol mapping;
• performing group-unit deinterleaving on interleaved values, the interleaved values generated after the demodulation;
• and
• restoring information bits by LDPC-decoding deinterleaved values generated based on the group-unit deinterleaving, the deinterleaved values corresponding to a LDPC codeword having a length of 16200 and a code rate of 3/15,
• wherein the group-unit deinterleaving is performed on a group basis, the size of the group corresponding to a parallel factor of the LDPC codeword,
• wherein the group-unit deinterleaving corresponds to interleaving performed by using permutation order, and
• the permutation order corresponds to an interleaving sequence represented by the following
• interleaving sequence={18 16 5 29 26 43 23 6 1 24 7 19 37 2 27 3 10 15 36 39 22 12 35 33 4 17 30 31 21 9 11 41 0 32 20 40 25 8 34 38 28 14 44 13 42}.