From: Low complexity soft demapping for non-binary LDPC codes
Modules | Set up |
---|---|
FEC encoder | DAVINCI NB-LDPC codes |
 | GF order = 64 |
 | Codeword length = 96 symbols = 576 bits |
FEC decoder | Extended Min-Sum algorithm |
 | Number of soft values per symbol fed to the decoder = q m = 16 (highest values) |
 | Maximum number of decoding iterations = 30 |
Constellation | QPSK, 16QAM, 64QAM |
MIMO encoder | 2 × 2 antennas configuration |
 | Uncoded Spatial multiplexing |
 | STBC codeword length Q = 2 |
Channel model | AWGN and Rayleigh channels |
Soft demapper | Soft ML demapping |
 | Proposed low complexity algorithm with N m = 8, N q = 4 to 16, number of demapping iterations r = 0 to 3 |