5G标准中的LDPC码研究及在图像传输中的应用
Research on LDPC codes in 5G standards and applications in image transmission system
陆松鹤 1张璐 2练秋芳 2鲁紫君2
作者信息
- 1. 中国移动通信有限公司研究院,北京 100031
- 2. 华侨大学 信息科学与工程学院,福建 厦门 361021
- 折叠
摘要
在第五代移动通信系统(5G)中,为满足用户随时随地接入网络的需求,在增强移动宽带应用场景中使用低密度奇偶校验(Low-Density Parity-Check,LDPC)码作为数据信道的信道编码方案.文章探讨了5G标准中的LDPC码在图像传输中的应用.仿真结果表明:与未经过信道编译码的图像传输系统相比,经过LDPC码编码的系统在相同的信噪比条件下,图像质量有着非常明显的提高,在信噪比为2 dB时已经十分接近原图.
Abstract
In the fifth generation mobile communication system(5G),Low-Density Parity-Check(LDPC)codes are used as the channel coding scheme for the data channel in enhanced mobile broadband application scenarios in order to satisfy the user's need to access the network anytime and anywhere.In this paper,we discuss the application of LDPC code in 5G standard in image transmission,and the simulation results show that compared with the image transmission system without channel compiled code,the system encoded by LDPC code has a very obvious improvement of image quality under the same conditions of signal-to-noise ratio,and it is already very close to the original image when the signal-to-noise ratio is 2 Db.
关键词
5G/LDPC码/图像传输/信道编码Key words
5G/LDPC codes/image transmission/channel coding引用本文复制引用
出版年
2024
NETL
NSTL
万方数据