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Table 8 Simulations set up

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