公开(公告)号：KR1020120049108A

公开(公告)日：2012-05-16

申请号：KR1020110029066

申请日：2011-03-30

Applicant: 성균관대학교산학협력단

Inventor： 오양근 ,  전병우 ,  심혁재

IPC: H03M13/11

CPC classification number: H03M13/1128 ,  H03M13/6502

Abstract: PURPOSE: Methods for encoding and decoding using a fast LDPCA(Low Density Parity Check Accumulate) code and apparatuses for decoding and encoding using the same are provided to reduce the complexity of a decoder by reducing an iterative process for decoding an LDPCA code. CONSTITUTION: An LLR(Log Likelihood Ratio) Intrinsic value is calculated(S300). The LLR Intrinsic value and a first estimated coefficient value are used as the same meaning and an entropy is calculated based on the calculated LLR Intrinsic value(S310). The number of parity bit transmission is calculated based on the calculated entropy(S320). One parity bit is transmitted based on the number of first parity bit transmission in which a bit plane is calculated. The bit plane is restored based on the parity bit to which the bit plane is transmitted(S330).

Abstract translation: 目的：提供使用快速LDPCA（低密度奇偶校验累加）码的编码和解码方法以及使用其进行解码和编码的装置，以通过减少用于解码LDPCA码的迭代处理来降低解码器的复杂度。 构成：LLR（对数似然比）计算内在值（S300）。 使用LLR本征值和第一估计系数值作为相同含义，并且基于计算的LLR本征值计算熵（S310）。 基于计算的熵计算奇偶校验位传输的数量（S320）。 基于计算位平面的第一奇偶校验位传输的数量来发送一个奇偶校验位。 基于发送位平面的奇偶校验位来恢复位平面（S330）。

公开(公告)号：KR101152482B1

公开(公告)日：2012-06-01

申请号：KR1020110029066

申请日：2011-03-30

Applicant: 성균관대학교산학협력단

Inventor： 오양근 ,  전병우 ,  심혁재

IPC: H03M13/11

Abstract: 고속부호율-적응저밀도패리티코드를이용한복호화방법및 이러한방법을사용하는부/복호화장치가개시되어있다. LDPCA(Low Density Parity Check Accumulate) 코드를이용한고속복호화방법은보조정보및 라플라시안계수를기초로비트플레인을예측하는제1 예측계수를산출하는단계와제1 예측계수를기초로비트플레인을복원하는데필요한정보량을나타내는제2 예측계수를산출하고, 제2 예측계수를기초로제1 패리티비트전송횟수를산출하는단계를포함할수 있다. 따라서, RD 성능의열화를방지하면서도디코딩처리시간에있어서도개선을가지고올 수있다.