| LDPC码加权比特翻转译码算法研究 |
| |
| 引用本文： | 张高远, 周亮, 文红. LDPC码加权比特翻转译码算法研究[J]. 电子与信息学报, 2014, 36(9): 2093-2097. doi: 10.3724/SP.J.1146.2013.01622 |
| |
| 作者姓名： | 张高远 周亮 文红 |
| |
| 作者单位： | 电子科技大学通信与抗干扰技术国家重点实验室 成都611731 |
| |
| 基金项目： | 国家自然科学基金，中央高校基本科研业务费专项基金，博士点基金(20120185110030;2013018530002)资助课题 |
| |
| 摘 要： | 近年来，基于置信传播(BP)，最小和(MS)和归一化最小和(NMS)算法，已经提出3种相对应的LDPC码加权比特翻转(WBF)译码算法。但这3种WBF算法所代表的物理意义和内在的紧密联系问题目前仍未有所研究。该文依据一种全新的理解方式，对3种WBF算法进行理论推导，并阐述3种算法内在的紧密联系，最后通过仿真验证所得结论的合理性和正确性。这对于设计新的改进型WBF算法具有一定的指导意义。
|
| 关 键 词： | 低密度奇偶校验码 加权比特翻转 可靠度后验信息 对数最大后验概率 |
| 收稿时间： | 2013-10-23 |
| 修稿时间： | 2013-12-20 |
Research on Weighted Bit-flipping Decoding Algorithm for LDPC Codes |
| |
| Zhang Gao-Yuan, Zhou Liang, Wen Hong. Research on Weighted Bit-flipping Decoding Algorithm for LDPC Codes[J]. Journal of Electronics & Information Technology, 2014, 36(9): 2093-2097. doi: 10.3724/SP.J.1146.2013.01622 |
| |
| Authors: | Zhang Gao-yuan Zhou Liang Wen Hong |
| |
| Abstract: | Recently, based on Belief-Propagation (BP), Min-Sum (MS) and Normalized MS (NMS) algorithms, three corresponding Weighted Bit Flipping (WBF) decoding algorithms are proposed for LDPC codes. However, not only the strict physical significance but also the inherent relationship of these WBF algorithms is still remain largely unknown. In this paper, the theoretical derivation, and an inherent relationship between them is developed from a whole novel understanding. Furthermore, the simulation results demonstrate the rationality and accuracy of the conclusion, which presents a certain reference value for design of new improved WBF algorithms. |
| |
| Keywords: | Low-Density Parity-Check (LDPC) codes Weighted Bit Flipping (WBF) Posterior reliability information Log maximum a posteriori |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
