Title :
Multilevel LDPC codes design for semi-BICM
Author :
Hou, Jia ; Lee, Moon Ho
Author_Institution :
Inst. of Inf. & Commun., Chonbuk Nat. Univ., Chonju, South Korea
Abstract :
In this letter, we joined the multilevel coding (MLC) and bit-interleaved coded modulation (BICM) together by using Gray mapping, which is called semi-BICM. To perform well at signal-to-noise ratio (SNR) close to the capacity of the additive white Gaussian noise (AWGN) channel, regular low density parity check (LDPC) codes are discussed with parallel independent decoding (PID). The numerical results show that the proposed structure could achieve both power and bandwidth efficiency.
Keywords :
AWGN channels; channel capacity; interleaved codes; modulation coding; parity check codes; AWGN channel capacity; additive white Gaussian noise; bandwidth efficiency; bit-interleaved coded modulation; gray mapping; low density parity check codes; multilevel LDPC codes; parallel independent decoding; semiBICM; signal-to-noise ratio; AWGN channels; Additive white noise; Bandwidth; Bit error rate; Channel capacity; Decoding; Gaussian noise; Modulation coding; Parity check codes; Signal to noise ratio; 65; BICM; Bit-interleaved coded modulation; LDPC; MLC; PID; low density parity check; multilevel coding; parallel independent decoding;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.837660
