Protograph-based q-ary LDPC codes for higher-order modulation

Protograph-based q-ary LDPC codes for higher-order modulation
复制标题

用于高阶调制的基于原图的 q 元 LDPC 码

DOI:
10.1109/istc.2010.5613806
复制
发表时间:
2010
期刊:
2010 6th International Symposium on Turbo Codes & Iterative Information Processing
影响因子:
--
通讯作者:
R. Wesel
R. Wesel
中科院分区:
--
文献类型:
--
作者:
A. Marinoni;P. Savazzi;R. Wesel

文献摘要

参考文献

被引文献

相似文献

本文介绍了一种基于原图的方法,用于设计用于大于 QPSK 的调制的 q 进制 LDPC 码。模拟重点关注 GF(16)、16-QAM 示例。当选择平均列权以满足线性最小距离增长特性时,所提出的构造方法可以获得最大增益。在此区域中,基于原图的设计相对于标准 PEG 方法的优势为 0.3 dB。我们发现,仔细的场元素选择算法比随机场元素选择提供了约 0.1 dB 的改进。总体而言,与具有随机选择的伽罗瓦域元素的基于 PEG 的 GF(16) 代码相比,所提出的改进产生了 0.4 dB 的增益。该基线 GF(16) 码的性能与最知名的 16-QAM 二进制 LDPC 码相当,因此所提出的改进允许 GF(16) LDPC 码优于已知的二进制方法。
This paper introduces a protograph-based method for designing q-ary LDPC codes for use with modulations larger than QPSK. Simulations focus on a GF(16), 16-QAM example. The proposed construction method achieves the maximum gain when the average column weight is chosen so that the linear minimum distance growth property is satisfied. In this region, the benefit of a protograph-based design over a standard PEG approach was 0.3 dB. We found that a careful field-element selection algorithm provides about 0.1 dB of improvement over random field-element selection. Overall, the proposed improvements yielded 0.4 dB of gain over a PEG-based GF(16) code with randomly selected Galois field elements. The performance of this baseline GF(16) code was comparable to the best known binary LDPC code for 16-QAM, so that the proposed improvements allow the GF(16) LDPC code to outperform known binary approaches.
DOI: 10.1049/ip-com:20050230
发表时间: 2005-12-01
期刊: IEE PROCEEDINGS-COMMUNICATIONS
影响因子: --
作者:
Rathi, V;Urbanke, R
通讯作者: Urbanke, R
DOI: 10.1109/18.910577
发表时间: 2001-02-01
影响因子: 2.5
作者:
Richardson, TJ;Urbanke, RL
通讯作者: Urbanke, RL