光电工程, 2020, 47 (3): 190623, 网络出版: 2020-04-05   

无线光通信中喷泉码的发展现状与展望

Development and prospect of fountain codes in optical wireless communication
作者单位
华南师范大学信息光电子科技学院,广东省微纳光子功能材料与器件重点实验室,广东 广州 510006
摘要
无线光通信信道复杂多变,喷泉码作为一种新兴的无速率编码无需信道的先验信息即可实现不同信道环境下的自适应传输,与传统编码相比更能提升无线传输的质量。本文首先总结了喷泉码应用于无线光通信的优势以及国内外喷泉码的发展现状,然后深入研究了两类喷泉码编码方案的设计以及对喷泉码性能影响重大的度分布函数的设计,总结了一种喷泉码即(LT)码的译码方法以及近些年不断提出优化的方案,同时指出了喷泉码设计中亟需解决的关键难点,最后提出了喷泉码应用于无线光通信的必要技术和探索方向。
Abstract
The optical wireless communication channel is complex and changeable. Fountain codes as an emerging rateless coding can achieve adaptive transmission in different channel environments without a priori information of the channel. Compared with traditional coding, it can improve the quality of wireless transmission. In this paper, we first summarize the advantages of fountain codes applied to optical wireless communication and the domestic and foreign researches on the development status of fountain codes. Then we deeply study the design of two kinds of fountain codes coding schemes, as well as the degree distribution function which has significant influence on the performance of fountain code. Soon we put forward one kind of fountain codes, namely Luby transform (LT) codes, and introduce the optimization schemes in recent years. Meanwhile, the key difficulties that need to be solved in the fountain codes design are pointed out. Finally, the necessary technologies and explorations direction of fountain codes for wireless optical communication are proposed.

吴一, 刘宏展, 郝源, 刘丽媛. 无线光通信中喷泉码的发展现状与展望[J]. 光电工程, 2020, 47(3): 190623. Wu Yi, Liu Hongzhan, Hao Yuan, Liu Liyuan. Development and prospect of fountain codes in optical wireless communication[J]. Opto-Electronic Engineering, 2020, 47(3): 190623.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!