Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimizing Polar Codes Compatible with Off-the-Shelf LDPC Decoders   Previous work showed that polar codes can be decoded using off-the-shelf LDPC
decoders by imposing special constraints on the LDPC code structure, which,
however, resulted in some performance degradation. In this paper we show that
this loss can be mitigated; in particular, we demonstrate how the gap between
LDPC-style decoding and Arikan's Belief Propagation (BP) decoding of polar
codes can be closed by taking into account the underlying graph structure of
the LDPC decoder while jointly designing the polar code and the parity-check
matrix of the corresponding LDPC-like code. The resulting polar codes under
conventional LDPC-style decoding are shown to have similar error-rate
performance when compared to some well-known and standardized LDPC codes.
Moreover, we obtain performance gains in the high SNR region.

26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
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The categories of this paper are: stat
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga