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- W2006203510 abstract "We propose an improved method for designing unequal error protection (UEP) low-density parity-check (LDPC) codes. The method is based on density evolution. The degree distribution with the best UEP properties is found, under the constraint that the threshold should not exceed the threshold of a non-UEP code plus some threshold offset. For different codeword lengths and different construction algorithms, we search for good threshold offsets for the UEP code design. The choice of the threshold offset is based on the average a posteriori variable node mutual information. Simulations reveal the counter intuitive result that the short-to-medium length codes designed with a suitable threshold offset all outperform the corresponding non-UEP codes in terms of average bit-error rate. The proposed codes are also compared to other UEP-LDPC codes found in the literature." @default.
- W2006203510 created "2016-06-24" @default.
- W2006203510 creator A5052863205 @default.
- W2006203510 date "2010-11-29" @default.
- W2006203510 modified "2023-10-16" @default.
- W2006203510 title "Improved Design of Unequal Error Protection LDPC Codes" @default.
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- W2006203510 doi "https://doi.org/10.1155/2010/423989" @default.
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