湍流信道下非对称限幅光OFDM自适应索引调制方案

王惠琴; 裴岩浩; 王真; 唐崎涵; 茹辉; 张红彦

doi:10.11959/j.issn.1000-436x.2024200

您当前的位置：

首页 >

文章列表页 >

湍流信道下非对称限幅光OFDM自适应索引调制方案

学术论文 | 更新时间：2024-12-24

- 湍流信道下非对称限幅光OFDM自适应索引调制方案
- Asymmetric clipped optical OFDM adaptive indexing modulation scheme under turbulent channels
- 通信学报 2024年45卷第11期页码：174-183
- 作者机构：
  
  兰州理工大学计算机与通信学院，甘肃兰州 730050
- 作者简介：
  
  [ "王惠琴（1971- ），女，甘肃渭源人，博士，兰州理工大学教授、博士生导师，主要研究方向为无线光通信理论与技术。" ]
  [ "裴岩浩（1999- ），男，甘肃武山人，兰州理工大学硕士生，主要研究方向为无线光通信理论与技术、自适应调制。" ]
  [ "王真（1998- ），男，山西应县人，兰州理工大学博士生，主要研究方向为无线光通信理论与技术、深度学习。" ]
  [ "唐崎涵（1996- ），男，陕西勉县人，兰州理工大学博士生，主要研究方向为无线光通信理论与技术、深度学习。" ]
  [ "茹辉（1997− ），女，甘肃酒泉人，兰州理工大学硕士生，主要研究方向为无线光通信理论与技术、信道估计。" ]
  [ "张红彦（1999− ），女，甘肃甘谷人，兰州理工大学硕士生，主要研究方向为无线光通信理论与系统、深度学习。" ]
- 基金信息：
  
  国家自然科学基金资助项目(62261033;62265010);甘肃省重点研发计划基金资助项目(22JR5RA278)
- DOI：10.11959/j.issn.1000-436x.2024200
  中图分类号： TN929.12
- 收稿日期：2024-09-02，
  
  修回日期：2024-11-06，
  
  纸质出版日期：2024-11-25
- 稿件说明：
移动端阅览
王惠琴,裴岩浩,王真等.湍流信道下非对称限幅光OFDM自适应索引调制方案[J].通信学报,2024,45(11):174-183.

WANG Huiqin,PEI Yanhao,WANG Zhen,et al.Asymmetric clipped optical OFDM adaptive indexing modulation scheme under turbulent channels[J].Journal on Communications,2024,45(11):174-183.
王惠琴,裴岩浩,王真等.湍流信道下非对称限幅光OFDM自适应索引调制方案[J].通信学报,2024,45(11):174-183. DOI： 10.11959/j.issn.1000-436x.2024200.

WANG Huiqin,PEI Yanhao,WANG Zhen,et al.Asymmetric clipped optical OFDM adaptive indexing modulation scheme under turbulent channels[J].Journal on Communications,2024,45(11):174-183. DOI： 10.11959/j.issn.1000-436x.2024200.

摘要

针对现有光正交频分复用（OFDM）索引调制技术难以适应信道变化，导致系统传输速率受限的问题，构建了一个以最大化传输速率为目标的阈值优化模型。通过动态地寻找最佳M-QAM调制切换阈值，提出一种光OFDM自适应索引调制方案。在详细介绍信号的映射原理后，推导出所提方案在不同湍流强度下的最佳阈值和理论误码率。仿真结果表明，与传统光OFDM索引调制方案相比，所提方案在满足目标误码率的前提下，显著提升了系统的传输速率。

Abstract

Given the issue that existing optical orthogonal frequency division multiplexing (OFDM) with index modulation (OOFDM-IM) struggle to adapt to channel variations

which results in limitations on transmission rate. A threshold optimization model aimed at maximizing transmission rate was constructed. By dynamically identifying the optimal M-QAM modulation switching threshold

an optical OFDM adaptive indexing modulation scheme was proposed. After a detailed introduction to the mapping principle of the signal

the optimal threshold and theoretical bit error rate under different turbulence intensities were derived. The simulation results show that compared with traditional OOFDM-IM schemes

the proposed scheme significantly enhances transmission rate while satisfying the target bit error rate.

关键词

Keywords

references

BASAR E , PANAYIRCI E . Optical OFDM with index modulation for visible light communications [C ] // Proceedings of the 2015 4th International Workshop on Optical Wireless Communications (IWOW) . Piscataway : IEEE Press , 2015 : 11 - 15 .

MAO T Q , JIANG R , BAI R W . Optical dual-mode index modulation aided OFDM for visible light communications [J ] . Optics Communications , 2017 , 391 : 37 - 41 .

AZIM A W , CHAFII M , GUENNEC Y L , et al . Spectral and energy efficient fast-OFDM with index modulation for optical wireless systems [J ] . IEEE Communications Letters , 2020 , 24 ( 8 ): 1771 - 1774 .

王惠琴 , 杨丽荣 , 彭清斌 , 等 . 基于离散小波变换的O-OFDM-DIM [J ] . 北京邮电大学学报 , 2022 , 45 ( 3 ): 57 - 63 .

WANG H Q , YANG L R , PENG Q B , et al . O-OFDM-DIM based on discrete wavelet transform [J ] . Journal of Beijing University of Posts and Telecommunications , 2022 , 45 ( 3 ): 57 - 63 .

XU X Y , ZHANG Q , YUE D W . Orthogonal frequency division multiplexing with index modulation based on discrete hartley transform in visible light communications [J ] . IEEE Photonics Journal , 2022 , 14 ( 3 ): 7330310 .

AZIM A W , GUENNEC Y L , CHAFII M , et al . LACO-OFDM with index modulation for optical wireless systems [J ] . IEEE Wireless Communications Letters , 2021 , 10 ( 3 ): 664 - 667 .

WEN H , CHEN H , CHEN Q H , et al . Performance enhanced dual-mode index modulation OFDM with OCT precoding in VLC systems [J ] . Optics Communications , 2023 , 530 : 129191 .

赵黎 , 何欢洁 , 孟祥艳 , 等 . 基于组合索引与欧氏距离相结合的OFDM-IM可见光通信系统研究 [J ] . 电子与信息学报 , 2022 , 44 ( 8 ): 2710 - 2716 .

ZHAO L , HE H J , MENG X Y , et al . Research on OFDM-IM visible light communication system based on combination index and euclidean distance [J ] . Journal of Electronics & Information Technology , 2022 , 44 ( 8 ): 2710 - 2716 .

ZHENG Z N , DU H Q , XUE J , et al . Adaptive spatial modulation for indoor visible light communications [J ] . IEEE Communications Letters , 2020 , 24 ( 10 ): 2240 - 2244 .

NOURI H , SAIT S M , UYSAL M . Adaptive modulation for FSO IM/DD systems with multiple transmitters and receivers [J ] . IEEE Communications Letters , 2023 , 27 ( 2 ): 586 - 590 .

CHEN D , LIU Y , GAO Y , et al . Adaptive transmission based on MIMO mode switching over Malaga turbulence channel with pointing error [J ] . IEEE Photonics Journal , 2023 , 15 ( 2 ): 7301111 .

ÇOLAK S A , ACAR Y , BASAR E . Adaptive dual-mode OFDM with index modulation [J ] . Physical Communication , 2018 , 30 : 15 - 25 .

NADARAJAH S , GUPTA A K . On the moments of the exponentiated weibull distribution [J ] . Communications in Statistics: Theory and Methods , 2005 , 34 ( 2 ): 253 - 256 .

KAUSHAL H , KADDOUM G . Optical communication in space: challenges and mitigation techniques [J ] . IEEE Communications Surveys & Tutorials , 2017 , 19 ( 1 ): 57 - 96 .

PROAKIS J G , SALEHI M . Digital communications [M ] . Boston : McGraw-hill , 2008 .

WU L , ZHANG Z C , DANG J , et al . Adaptive modulation schemes for visible light communications [J ] . Journal of Lightwave Technology , 2015 , 33 ( 1 ): 117 - 125 .

DONG C , YANG L L , HANZO L . Performance of buffer-aided adaptive modulation in multihop communications [J ] . IEEE Transactions on Communications , 2015 , 63 ( 10 ): 3537 - 3552 .

YU X B , PAN Q , LI Y , et al . Adaptive spatial modulation and thresholds optimization for MIMO systems in correlated Rayleigh channels [J ] . International Journal of Electronics and Communications , 2018 , 89 : 167 - 173 .

ALLEN M B , ISAACSON E L . Numerical analysis for applied science [M ] . New York : John Wiley & Sons Inc , 2019 .

BEHNAD A . A novel extension to craig’s Q-function formula and its application in dual-branch EGC performance analysis [J ] . IEEE Transactions on Communications , 2020 , 68 ( 7 ): 4117 - 4125 .

LUONG T V , KO Y . Spread OFDM-IM with precoding matrix and low-complexity detection designs [J ] . IEEE Transactions on Vehicular Technology , 2018 , 67 ( 12 ): 11619 - 11626 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

Nakagami-m衰落信道下D2D通信自适应调制算法研究

快时变信道下非数据辅助误差矢量幅度的自适应调制算法

单跳节点间传输距离对无线传感器网络性能影响的评估

OFDMA系统中的功率与比特高效分配算法