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For polar codes, cyclic redundancy check (CRC)-aided successive cancellation list (CA-SCL) decoder has attracted increasing attention from both academia and industry. In this paper, a hardware efficient and low-latency CA-SCL polar decoder based on distributed sorting is first proposed. For path metric (PM) sorting of each level, a distributed sorting (DS) algorithm is proposed to reduce the comparison...
Non-Binary LDPC codes offer higher performances than their binary counterpart but suffer from higher decoding complexity. A solution to reduce the decoding complexity is to use the Extended Min-Sum algorithm. The first step of this algorithm requires the generation of the first n_m largest Log-Likelihood Ratio (LLR), sorted in increasing order, of each received symbol. In the case where GF(q) symbols...
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