Abstract-This paper describes a coding scheme for approaching the maximum theoretical decode-and-forward rate for the relay channel in the high signal-to-noise ratio (SNR) regime. The proposed scheme is based on a concatenation of bit-interleaved coded modulation (BICM) and a specially designed bilayer lowdensity parity-check (BLDPC) code that works simultaneously at two different SNRs. It is shown that the proposed BICM-BLDPC scheme provides a close-to-optimal performance for the relay channel at high SNRs, with a gap of 0.5 dB to the theoretical limit, at a bit error rate of 10 −4 .
The bilayer structure is extended for use at high SNR using bit-interleaved coded modulation (BICM) REF .
Bit-Interleaved Coded Modulation for the Relay Channel Using Bilayer LDPC Codes
2007 10th Canadian Workshop on Information Theory (CWIT)
2007 10th Canadian Workshop on Information Theory (CWIT)
Computer Science