多码长码率兼容的多元LDPC码及编码器设计

廉晶汇; 赵旦峰; 朱鹏景

Chinese

您当前的位置：

首页 >

文章列表页 >

多码长码率兼容的多元LDPC码及编码器设计

更新时间：2026-09-04

- 多码长码率兼容的多元LDPC码及编码器设计
- Multi-length and multi-rate compatible nonbinary LDPC code and encoder design
- 微电子学与计算机 2020年37卷第4期页码：55-59
- 作者机构：
  
  哈尔滨工程大学信息与通信工程学院,哈尔滨,150001
- 作者简介：
- 基金信息：
  
  国家重点研发计划项目 2016YFB0502602
- DOI：
  中图分类号：
- 纸质出版：2020
- 稿件说明：
移动端阅览
廉晶汇, 赵旦峰, 朱鹏景. 多码长码率兼容的多元LDPC码及编码器设计[J]. 微电子学与计算机, 2020, 37(4): 55-59.

LIAN Jing-hui, ZHAO Dan-feng, ZHU Peng-jing. Multi-length and multi-rate compatible nonbinary LDPC code and encoder design[J]. 2020, 37(4): 55-59.
廉晶汇, 赵旦峰, 朱鹏景. 多码长码率兼容的多元LDPC码及编码器设计[J]. 微电子学与计算机, 2020, 37(4): 55-59. DOI：

LIAN Jing-hui, ZHAO Dan-feng, ZHU Peng-jing. Multi-length and multi-rate compatible nonbinary LDPC code and encoder design[J]. 2020, 37(4): 55-59. DOI：

摘要

为适应海上无线通信信道的时变特性，突破多元LDPC码长码率不兼容的技术现状，构造一种多码长码率兼容的多元LDPC码，可以实现在多种码长、多种码率间的相互兼容，并完成编码器的设计.借鉴5G二元LDPC码校验矩阵的特殊结构并将其扩展至伽罗华域，设计的多元LDPC码在兼容多码长码率的同时，又拥有优秀译码性能和较低的硬件实现复杂度.该设计在Xilinx xc7k325tffg900-2芯片上进行实现，采用部分并行的编码方式，兼顾编码效率和硬件开销，可以实现五种信息位长和五种码率间灵活切换.工作时钟频率可达370 MHz，在该时钟频率下编码器吞吐率最高可达601.8 Mbps.

Abstract

In order to adapt to the time-varying channels for maritime wireless communication systems and break through the current state on length and rate incompatibility of nonbinary LDPC. We construct a nonbinary LDPC code which compatible between multiple lengths and multiple rates

and complete the design of the encoder. Drawing on the special structure of the 5G binary LDPC check matrix and extending it to the Galois field. The designed nonbinary LDPC check matrix not only compatible between length and rate

but also has excellent decoding performance and low hardware implementation complexity. The design is implemented on the Xilinx xc7k325tffg900-2 chip. It adopts partial parallel encoding

taking into account the coding efficiency and hardware overhead. It can realize flexible switching between five information lengths and five code rates. The working frequency of the clock can reach 370MHz

and the encoder throughput can reach up to 601.8Mbps at this clock frequency.

关键词

Keywords

references

ZHOU L, BAI B M, XU M. Design of Nonbinary Rate-Compatible LDPC Codes Utilizing Bit-Wise Shortening Method[J]. IEEE Communications Letters, 2010, 14(10): 963-965. DOI: 963

IEEE Standard for Information Technology. Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications[S]. IEEE Std 802.11-2007 (Revision of IEEE Std 802.11-1999), 2007: 1-1076.

ZHANG Y S, PENG K W, CHEN Z M, et al. Progressive Matrix Growth Algorithm for Constructing Rate-Compatible Length-Scalable Raptor-Like Quasi-Cyclic LDPC Codes[J]. IEEE Transactions on Broadcasting, 2018, 64(4): 816-829. DOI: 816

BEERMANN M, WICKERT F, VARY P. Highly flexible design of multi-rate multi-length quasi-cyclic LDPC codes[C]. 2014 8th International Symposium on Turbo Codes and Iterative Information Processing (ISTC), Bremen, 2014: 37-41.

HUANG J, ZHOU W, ZHOU S L. Structured Nonbinary Rate-Compatible Low-Density Parity-Check Codes[J]. IEEE Communications Letters, 2011, 15(9): 998-1000. DOI: 998

MYUNG S, YANG K, KIM Y. Lifting methods for quasi-cyclic LDPC codes[J]. IEEE Communications Letters, 2006, 10(6): 489-491. DOI: 489

GALLAGER R. Low-density parity-check codes[J]. IRE Transactions on Information Theory, 1962, 8(1): 21-28. DOI: 21

LI H A, BAI B M, MU X J, et al. Algebra-Assisted Construction of Quasi-Cyclic LDPC Codes for 5G New Radio[J]. IEEE Access, 2018, 6: 50229-50244. DOI: 50229

徐华.一种改进的基于有限域的准循环LDPC码设计方法[J].微电子学与计算机, 2014, 31(10):147-150. DOI: 147

MU X J, LI H A, BAI B M. Extension method for constructing rate-compatible nonbinary LDPC codes[J]. Journal of Tsinghua University, 2018. 58(3): 243-248. DOI: 243

张萌.基于FPGA的多速率LDPC编码器和译码器设计与实现[J].现代导航, 2018, 9(1):41-46. DOI: 41

DAVEY M C, MACKAY D J C. Low-density parity check codes over GF(q)[J]. Information Theory Workshop, 1998: 70-71. DOI: 70

刘冬培, 刘衡竹, 张波涛.基于准循环双对角阵的LDPC码编码算法[J].国防科技大学学报, 2014, 36(2):156-160. DOI: 156

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于区块链的AI生成内容溯源框架设计研究

基于监控指标关联性的微服务异常检测

一种基于特征上下文理解与切片分析的肺结核检测算法

超低功耗实时时钟电路的设计

基于改进RT-DETR的航拍小目标检测算法