LDPC Codes for Flat Rayleigh Fading Channels with Channel Side Information

Yibo Jiang, Alexei Ashikhmin, Naresh Sharma
2008 IEEE Transactions on Communications  
In this paper, we design capacity approaching low-density parity-check (LDPC) codes in the low signal-to-noise ratio (SNR) regime for flat Rayleigh fading channels with channel side information at transmitter and receiver. We use the structure advocated by Caire et al, which uses a single codebook with dynamic power allocation. The extrinsic information transfer (EXIT) function method is used to design the LDPC codes which approach the channel capacities. We also study the EXIT function
more » ... es of various demappers, and consider the error exponents in the high SNR regime. Index Termslow-density parity-check (LDPC) codes, mutual information, iterative decoding, fading, channel side information.
doi:10.1109/tcomm.2008.041040 fatcat:haa6focuhje6zebkarm5rpvvua