Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double Cylinder Cycle codes of Arbitrary Girth   A particular class of low-density parity-check codes referred to as
cylinder-type BC-LDPC codes is proposed by Gholami and Eesmaeili. In this paper
We represent a double cylinder-type parity-check matrix H by a graph called the
block-structure graph of H and denoted by BSG(H). Using the properties of
BSG(H) we propose some mother matrices with column-weight two such that the
rate of corresponding cycle codes are greater tan cycle codes constructed by
Gholami with same girth.

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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga