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Just to generate channel coefficient h according to the Rayleigh distribution, and generate received signal by the below equation
y = hx+n
where x is the modulated symbol and n is zero mean and variance N0 Gaussian distributed.
At the receiver, before executing the sum-product algorithm for...
For particular QC-LDPC code and BCH code, you have observed the SNR gap between the two codes from the simulation results. There is no need to know the theoretical SNR gap between them. So, I guess that you are talking about the theoretical performance of an ensemble of QC-LDPC codes. In this...
Consider a row of an information block only has one nonzero bit and all other positions in the block are zero, then for product code, the row weight after row-wise encoding for this row is d1. In addition, since there are d1 nonzero positions in a row, each nonzero position will produce d2...
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