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- W4313591126 abstract "ADMM penalized decoding method for Low-Density Parity-Check (LDPC) Codes can improve the frame error rate (FER) performance than the standard ADMM decoder by adding penalty terms to the objective function. However, penalty parameter optimization of the penalty terms is very difficult and extremely time-consuming. Additionally, the Euclidean projection onto the check polytope is the most complex part of ADMM-based decoding algorithms. In this paper, by dynamically choosing even-vertex in the check polytope closest to the input vector as the approximate projection, a simple and novel check polytope projection penalized algorithm for ADMM decoding is proposed which can avoid the tedious work of penalty parameter optimization and simplify the check polytope projection. The simulation results show that the proposed algorithm can substantially reduce the projection time while achieving better FER performance when compared with the existing penalized decoding. In particular, the proposed algorithm can save the decoding time by 23% to 41% compared with ADMM-PD-LSA algorithm." @default.
- W4313591126 created "2023-01-06" @default.
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- W4313591126 date "2023-01-01" @default.
- W4313591126 modified "2023-10-14" @default.
- W4313591126 title "A Simple Check Polytope Projection Penalized Algorithm for ADMM Decoding of LDPC Codes" @default.
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- W4313591126 doi "https://doi.org/10.1109/access.2023.3234182" @default.
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