Quantization for LDPC-decoder node messages
Estimation of performance of data transmission system with different parameters:
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unquantized AWGN-channel and unquantized Min-Sum (MS) decoder
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uniformly quantized AWGN-channel and discrete MS (6 bits)
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non-uniformly quantized AWGN-channel and discrete MS (4 bits)
Running the simulation:
simulate(2, 0,'codes/LDPC_5G_K120_R075.alist', 20,[1 1.5 2 2.5 3 3.5 4 4.5 5], 6, 4, 10)
Parameters:
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M = 2 for BPSK
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thrf = 0 for calculting the new decoding treshold and quantization bounds (or provide the location of file with computed decoding threshold)
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ldpc_filename - alist file location
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snr_array - snr values to simulate
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q_uniform - number of bits for uniform quantization
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q_nonuniform - number of bits for non-uniform quatization (< q_uniform)
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fe - number of frames with error (the same for unquantized, uniform and non-uniform variants)
