Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-Throughput Split-Tree Architecture for Nonbinary SCL Polar Decoder   Nonbinary polar codes defined over Galois field GF(q) have shown improved
error-correction performance than binary polar codes using
successive-cancellation list (SCL) decoding. However, nonbinary operations are
complex and a direct-mapped decoder results in a low throughput, representing
difficulties for practical adoptions. In this work, we develop, to the best of
our knowledge, the first hardware implementation for nonbinary SCL polar
decoding. We present a high-throughput decoder architecture using a split-tree
algorithm. The sub-trees are decoded in parallel by smaller sub-decoders with a
reconciliation stage to maintain constraints between sub-trees. A skimming
algorithm is proposed to reduce the reconciliation complexity for further
improved throughput. The split-tree nonbinary SCL (S-NBSCL) polar decoder is
prototyped using a 28nm CMOS technology for a (128,64) polar code over GF(256).
The decoder delivers 26.1 Mb/s throughput, 11.65 Mb/s/mm$^2$ area efficiency
and 28.8 nJ/b energy efficiency, outperforming the direct-mapped decoder by
10.3x, 4.4x and 2.7x, respectively, while achieving excellent error-correction
performance.

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The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: econ