可见光通信自适应O-OFDM符号分解串行传输系统设计与研究

贾科军; 杨博然; 曹明华; 黎锁平; 郝莉

doi:10.11959/j.issn.1000-436x.2020179

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可见光通信自适应O-OFDM符号分解串行传输系统设计与研究

学术论文 | 更新时间：2024-06-05

- 可见光通信自适应O-OFDM符号分解串行传输系统设计与研究
- Design and research of adaptive O-OFDM symbol decomposing with serial transmission system in visible light communication
- 通信学报 2020年41卷第9期页码：179-189
- 作者机构：
  
  1. 兰州理工大学计算机与通信学院，甘肃兰州 730050
  2. 兰州理工大学理学院，甘肃兰州 730050
  3. 西南交通大学信息科学与技术学院，四川成都 610031
- 作者简介：
  
  [ "贾科军（1978- ），男，陕西兴平人，博士，兰州理工大学教授、硕士生导师，主要研究方向为多载波调制、可见光通信技术" ]
  [ "杨博然（1996- ），男，吉林长春人，兰州理工大学硕士生，主要研究方向为可见光通信LED非线性抑制技术" ]
  [ "曹明华（1979- ），男，甘肃平凉人，博士，兰州理工大学副教授、硕士生导师，主要研究方向为微波光子学与无线光通信技术" ]
  [ "黎锁平（1965- ），男，甘肃合水人，博士，兰州理工大学教授、博士生导师，主要研究方向为随机系统的优化与控制、无线通信业务流与数据通信协议分析设计" ]
  [ "郝莉（1971- ），女，四川成都人，博士，西南交通大学教授、博士生导师，主要研究方向为无线通信理论与关键技术" ]
- 基金信息：
  
  国家自然科学基金资助项目(61461026);甘肃省自然科学基金资助项目(18JR3RA153)
- DOI：10.11959/j.issn.1000-436x.2020179
  中图分类号： TN929.12
- 网络出版日期：2020-09，
  
  纸质出版日期：2020-09-25
- 稿件说明：
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贾科军, 杨博然, 曹明华, 等. 可见光通信自适应O-OFDM符号分解串行传输系统设计与研究[J]. 通信学报, 2020,41(9):179-189.

Kejun JIA, Boran YANG, Minghua CAO, et al. Design and research of adaptive O-OFDM symbol decomposing with serial transmission system in visible light communication[J]. Journal on communications, 2020, 41(9): 179-189.
贾科军, 杨博然, 曹明华, 等. 可见光通信自适应O-OFDM符号分解串行传输系统设计与研究[J]. 通信学报, 2020,41(9):179-189. DOI： 10.11959/j.issn.1000-436x.2020179.

Kejun JIA, Boran YANG, Minghua CAO, et al. Design and research of adaptive O-OFDM symbol decomposing with serial transmission system in visible light communication[J]. Journal on communications, 2020, 41(9): 179-189. DOI： 10.11959/j.issn.1000-436x.2020179.

摘要

迭代信号限幅（ISC）和符号分解串行传输（SDST）技术将光正交频分复用（O-OFDM）符号分解为固定数量的多个小幅度符号，但当 O-OFDM 符号方差较小时，分解符号中有大量不载荷信息的全零符号，导致误码率变差、光功率损耗和信息速率降低。针对这一问题，提出了自适应 O-OFDM 符号分解串行传输（ASDST）系统，根据O-OFDM符号的幅度大小自适应决定符号分解，直到O-OFDM符号完全分解或达到最大符号分解次数，从而消除了全零符号，减少了平均符号分解次数。理论分析和蒙特卡罗仿真验证了ASDST系统的性能。

Abstract

Iterative signal clipping (ISC) and symbol decomposing with serial transmission (SDST) techniques decompose optical orthogonal frequency division multiplexing (O-OFDM) symbol into the fixed number of multiple small-amplitude symbols.However

at low O-OFDM symbol variances

the decomposition symbols contain a large amount of all-zero symbols without load information

which results in bit error rate degradation

optical power penalty and information rate reduction.Aim at this problem

an adaptive O-OFDM symbol decomposing with serial transmission (ASDST) system was proposed

the symbol decomposition was adaptively determined according to the O-OFDM symbol amplitude.Symbol decomposition was terminated until O-OFDM symbol was completely decomposed or the maximum symbol decomposition times were attained

thereby eliminated all-zero symbols and reduced the average symbol decomposition times.The performance of ASDST system was verified by theoretical analysis and Monte Carlo simulation.

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references

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