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Design of Convergence-Optimized Non-binary LDPC Codes over Binary Erasure Channel (2003.01340v1)
Published 3 Mar 2020 in eess.SP, cs.IT, and math.IT
Abstract: In this letter, we present a hybrid iterative decoder for non-binary low density parity check (LDPC) codes over binary erasure channel (BEC), based on which the recursion of the erasure probability is derived to design non-binary LDPC codes with convergence-optimized degree distributions. The resulting one-step decoding tree is cycle-free and achieves lower decoding complexity. Experimental studies show that the proposed convergence-optimization algorithm accelerates the convergence process by 33%.
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