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- W1975761036 abstract "Scheduling strategy is considered an important aspect of belief-propagation (BP) decoding of low-density parity-check (LDPC) codes because it affects the decoder's convergence rate, decoding complexity and error-correction performance. In this paper, we propose two new scheduling strategies for the BP decoding of non-binary LDPC (NB-LDPC) codes. Both the strategies are devised based on the concept of check node reliability and employ a heuristically defined threshold which can adapt to the communication channel variations. As the scheduling strategies only update a subset of the check nodes in each iteration, they result in reduced iteration cost. Furthermore, since the BP performs suboptimally for finite-length LDPC codes, especially for short-length LDPC codes, by enhancing the message propagation over the Tanner Graphs of short-length NB-LDPC codes, the new scheduling strategies can even improve the error-correction performances of BP decoding. Simulation results demonstrate that the new scheduling strategies provide good performance/complexity tradeoffs." @default.
- W1975761036 created "2016-06-24" @default.
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- W1975761036 date "2013-03-01" @default.
- W1975761036 modified "2023-09-24" @default.
- W1975761036 title "Check Node Reliability-Based Scheduling for BP Decoding of Non-Binary LDPC Codes" @default.
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- W1975761036 doi "https://doi.org/10.1109/tcomm.2013.011613.120249" @default.
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