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Patent

Data processing device and data processing method

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TLDR
In this article, a group-wise deinterleaving technique was proposed to ensure good communication quality when using an LDPC code to transmit data, which can be applied to data transmission or the like.
Abstract
This technology pertains to a data-processing device and a data processing method that make it possible to ensure good communication quality when using an LDPC code to transmit data. In group-wise interleaving, an LDPC code having a code length (N) of 16,200 bits and a code rate (r) of 10/15 or 12/15 is interleaved on a per-bit-group basis, each bit group being 360 bits long. In group-wise deinterleaving, the interleaved LDPC code is restored to the original ordering thereof. This technology can be applied, for example, to data transmission or the like using an LDPC code.

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References
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Journal ArticleDOI

On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit

TL;DR: Improved algorithms are developed to construct good low-density parity-check codes that approach the Shannon limit very closely, especially for rate 1/2.
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