LDPC code is an excellent type of error control codes.
LDPC码是一种优良的差错控制编码。
LDPC code is a good error correct code which interests telecommunication field recently.
LDPC码作为一种性能优异的纠错码，已经越来越引起通信领域的研究兴趣。
Advanced researches on decoding algorithm and decoder structure of QC LDPC code are the focus of this thesis.
本论文主要对准循环ldpc码的译码算法和译码器结构进行了较深入的研究。
The decoder employs the Normalized MSA algorithm, and Partially Parallel structure for LDPC code in CMMB standard.
本译码器采用改进的最小和译码算法及符合CMMB标准要求的部分并行译码器结构。
This paper introduces a class of network coding based on LDPC code for a cooperative network and extends it to multi-hop network.
采用LDPC码的结构研究了协作分集网络中的网络编码构造，并把它拓展到多跳网络中。
In order to satisfy the need in a variety of services and the high data rate, LDPC code is used for channel code in the B3G-system.
为了满足多种业务和高数据率的需求，“B3G”系统方案采用了LDPC码作为纠错编码。
Then the destination node jointly decodes the messages from the source and relay nodes. We call such a procedure as a network LDPC code.
目的节点可以利用源节点和中继节点的信息进行联合译码，我们称之为网络LDPC编码。
The Q-matrix LDPC code has high flexibility concerning design of code length and rate, which makes it compatible with the existed standard.
矩阵LDPC码不同于现有其它结构LDPC码的独特之处在于，对码长和码率参数的设计具有高度灵活性，使其能与现有标准兼容。
An LDPC code structure using cyclic shift matrices and an efficient LDPC code construction algorithm using the characteristic matrices is proposed.
本文研究了一种基于循环移位矩阵结构的LDPC码，提出了一种高效的基于特征矩阵的LDPC码构造算法。
The method used a parity-check matrix of a short LDPC code as its mother matrix upon which a long code was constructed with circulant permutation matrices.
该方法利用一个短的LDPC码的校验矩阵作为其母矩阵，在此基础上采用循环置换矩阵构造一个长的LDPC码。
The scheme can solve the flat bed of error codes of the LDPC code and has higher flexibility and greater encoding gain than the cascaded methods of BCH code.
该方案能够克服LDPC码的误码平层，并且比BCH码级联方法有更高的灵活性以及更大的编码增益。
According to the structure of Quasi-Cyclic LDPC code, we can make a trade-off between hardware complexity and decoding throughput by applying semi-parallel architecture.
利用准循环ldpc码的结构特点，使用半并行结构的译码器可以实现复杂度和译码速率的有效折中。
This paper presents an algebra method for constructing LDPC code based on Vandermonde matrix, which includes quasi-cyclic Q matrix and the perfect cyclic difference sets.
对准循环Q矩阵和完全循环差集进行了研究，在此基础上提出了一种LDPC码码族的代数构造方法。
However, the performance of LDPC code depends on the girth of its bipartite graph, that is it depends on its sparse parity-check matrices H, especially the complexity of encoding with H.
而LDPC码性能的优劣，与其二分图中是否存在短长度的圈有关，也即与其奇偶校验矩阵的构造有关。
At present, more and more communication system use LDPC code as the channel coding scheme, the architecture in this paper will give a reference to design and implementation of other LDPC decoder.
目前越来越多的通信系统采用LDPC码作为纠错码，这种硬件结构对其它系统的LDPC译码器设计及实现有一定的借鉴意义。
An encoder architecture of low density parity check (LDPC) code defined in DVB-S2 standard is proposed.
针对DVB - S2标准中的低密度奇偶校验(LDPC)码，提出了一种LDPC编码器设计结构。
This paper researches distributed video coding performance based on n-nary Low Density Parity Check (LDPC) code.
对基于多进制低密度奇偶校验(LDPC)码的分布式视频编码性能进行研究。
Low density parity check (LDPC) code, which is a special case of error correction code with sparse parity-check matrix, has the performance very close to the Shannon Limit.
LDPC码是一种特殊的具有稀疏校验矩阵的纠错编码，其性能逼近香农限。
To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.
提出一种新的结合多级编码和差分空时调制的联合编码调制方案。
To improve the decoding performance of Low Density Parity Check (LDPC) code, an efficient decoding algorithm based on min-sum algorithm is proposed.
针对低密度奇偶校验(LDPC)译码算法性能低的问题，提出一种基于最小和的高效译码算法。
A variable step uniform quantization(VSUQ) sum-product algorithm(SPA) was developed to reduce the hardware complexity of low-density parity-check(LDPC) code decoding.
为降低低密度奇偶检验码译码的硬件实现复杂度，提出了一种可变步长均匀量化“和积”译码算法。
In Chinese national standard for Digital Terrestrial Multimedia Broadcasting (DTMB), irregular Quasi Cyclic LDPC (QC - LDPC) code is used as core part of forward error correction coding.
在中国数字电视广播地面传输标准(DTMB)中，使用了非规则准循环ld P C码(QC-LDPC)作为前向纠错编码的核心部分。
In Chinese national standard for Digital Terrestrial Multimedia Broadcasting (DTMB), irregular Quasi Cyclic LDPC (QC - LDPC) code is used as core part of forward error correction coding.
在中国数字电视广播地面传输标准(DTMB)中，使用了非规则准循环ld P C码(QC-LDPC)作为前向纠错编码的核心部分。
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