面向多速率码分多址可见光通信系统的新码集研究

王建萍; 陈丹阳; 路慧敏; 金建力; 冯莉芳

doi:10.11959/j.issn.1000−436X.2020178

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面向多速率码分多址可见光通信系统的新码集研究

学术论文 | 更新时间：2024-06-05

- 面向多速率码分多址可见光通信系统的新码集研究
- Study of a new code set in multi-rate CDMA VLC system
- 通信学报 2020年41卷第12期页码：1-7
- 作者机构：
  
  北京科技大学计算机与通信工程学院，北京 100083
- 作者简介：
  
  [ "王建萍（1974- ），女，河北保定人，博士，北京科技大学教授、博士生导师，主要研究方向为光纤通信理论、可见光通信、微波光子学。" ]
  [ "陈丹阳（1993- ），女，河北张家口人，北京科技大学博士生，主要研究方向为可见光通信及其多址接入关键技术。" ]
  [ "路慧敏（1978- ），女，辽宁新民人，博士，北京科技大学副教授，主要研究方向为可见光通信、光学器件设计。" ]
  [ "金建力（1992- ），男，河北衡水人，北京科技大学博士生，主要研究方向为面向可见光通信的均衡技术、6G关键技术。" ]
  [ "冯莉芳（1980- ），女，河南周口人，博士，北京科技大学副教授，主要研究方向为可见光通信、无线通信编码理论、中继技术等。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61671055)
- DOI：10.11959/j.issn.1000−436X.2020178
  中图分类号： TN929.1
- 网络首发：2020-12，
  
  纸质出版：2020-12-25
- 稿件说明：
移动端阅览
王建萍, 陈丹阳, 路慧敏, 等. 面向多速率码分多址可见光通信系统的新码集研究[J]. 通信学报, 2020,41(12):1-7.

Jianping WANG, Danyang CHEN, Huimin LU, et al. Study of a new code set in multi-rate CDMA VLC system[J]. Journal on Communications, 2020, 41(12): 1-7.
王建萍, 陈丹阳, 路慧敏, 等. 面向多速率码分多址可见光通信系统的新码集研究[J]. 通信学报, 2020,41(12):1-7. DOI： 10.11959/j.issn.1000−436X.2020178.

Jianping WANG, Danyang CHEN, Huimin LU, et al. Study of a new code set in multi-rate CDMA VLC system[J]. Journal on Communications, 2020, 41(12): 1-7. DOI： 10.11959/j.issn.1000−436X.2020178.

摘要

针对无线通信多址接入系统中不同数据流量需求和 VLC 特点，构造了一种适用于多速率码分多址可见光通信系统的正交可变扩频因子-零互相关（OVSF-ZCC）码集，该码集包含可变长度的单极性扩频序列，序列之间保持零互相关特性。假设LED光源辐射为朗伯分布，进一步搭建了应用提出的OVSF-ZCC码集的多速率码分多址可见光通信系统模型，并在此基础上分析了码集构造参数、传输速率、传输距离等参数对该系统性能的影响。结果表明，所构造的OVSF-ZCC码集能够有效降低系统多址干扰（MAI）的影响，并支持多址接入系统中不同用户的多种速率传输。

Abstract

For the diverse traffic requirements of the wireless communication multiple access system and the characteristics of VLC

a new orthogonal variable spreading factor zero cross correlation (OVSF-ZCC) code set was proposed for multi-rate VLC code division multiple access (CDMA) system

which consisted of unipolar spreading sequences with variable lengths

and zero cross correlation properties.Assuming the radiation of LED light source was Lambert distribution

a multi-rate CDMA-VLC system with proposed code set was further presented.The effects of construction parameters

transmission rate and distance on system performance were evaluated.The results show that the new code set can effectively reduce multiple access interference (MAI)

and support multiple transmission rate requirements of different users in multiple access systems.

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references

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