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。
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.
作者
陆松鹤
张璐
练秋芳
鲁紫君
Lu Songhe;Zhang Lu;Lian Qiufang;Lu Zijun(China Mobile Research Institute,Beijing 100031,China;College of Information Science and Engineering,Huaqiao University,Xiamen 361021,China)
出处
《无线互联科技》
2024年第1期1-3,7,共4页
Wireless Internet Technology
基金
泉州市科技计划,项目名称:5G通信中的LDPC码关键技术研究与应用,项目编号:2018C108R。
