首页 > 论文 > 激光与光电子学进展 > 56卷 > 21期(pp:210603--1)

LED非线性信道下基于对称恢复的ACO-OFDM性能研究

Symmetry Recovery-Based ACO-OFDM Performance in LED Nonlinear Channel

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

针对可见光通信系统中的LED非线性失真效应,提出基于对称恢复的非对称限幅光正交频分复用(ACO-OFDM)接收机。利用ACO-OFDM的对称恢复特性,可以在时域实现奇数和偶数子信道之间的频谱分集。理论与实验证明,该方案在高非线性的可见光通信系统上实施效果良好。仿真结果证明了所使用的分集合并方案优于传统的ACO-OFDM方法。此外发现,增加调制指数导致较为显著的非线性时,该方案能够呈现出更好的性能。

Abstract

A symmetry recovery-based receiver in an asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) system is proposed to achieve LED nonlinearity in visible light communication systems. Based on the symmetric recovery characteristics of ACO-OFDM, a spectral diversity that combines odd and even sub-channels can be achieved in the time domain. Theoretical and experimental results show that the proposed scheme has a good performance when it is applied to a highly nonlinear visible light communication system. Simulation results demonstrate that the proposed method outperforms conventional ACO-OFDM solutions. Furthermore, we find that the proposed method exhibits better performance when an increased modulation index leads to significant nonlinearity.

广告组6 - 调制器
补充资料

中图分类号:TN929.12

DOI:10.3788/LOP56.210603

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金、河北省自然科学基金、河北省应用基础研究计划、河北经贸大学青年科技基金;

收稿日期:2019-04-10

修改稿日期:2019-05-05

网络出版日期:2019-11-01

作者单位    点击查看

刘晓爽:河北经贸大学信息技术学院, 河北 石家庄 050061
李建锋:河北经贸大学信息技术学院, 河北 石家庄 050061
李建科:河北经贸大学信息技术学院, 河北 石家庄 050061
孙立辉:河北经贸大学信息技术学院, 河北 石家庄 050061
黄治同:北京邮电大学信息光子学与光通信国家重点实验室, 北京 100876
康红俊:河北经贸大学信息技术学院, 河北 石家庄 050061

联系人作者:李建锋(lijianfeng555@126.com)

备注:国家自然科学基金、河北省自然科学基金、河北省应用基础研究计划、河北经贸大学青年科技基金;

【1】Elgala H, Mesleh R and Haas H. Indoor optical wireless communication: potential and state-of-the-art. IEEE Communications Magazine. 49(9), 56-62(2011).

【2】Hanzo L, Haas H, Imre S et al. Wireless myths, realities, and futures: from 3G/4G to optical and quantum wireless. Proceedings of the IEEE. 100(Special Centennial Issue), 1853-1888(2012).

【3】Chi N, Lu X Y, Wang C et al. High-speed visible light communication based on LED. Chinese Journal of Lasers. 44(3), (2017).
迟楠, 卢星宇, 王灿 等. 基于LED的高速可见光通信. 中国激光. 44(3), (2017).

【4】Chen Y, Yin H and Liu H L. Adaptive channel estimation for MIMO-OFDM visible light communication system. Chinese Journal of Lasers. 43(9), (2016).
陈勇, 尹辉, 刘焕淋. MIMO-OFDM可见光通信系统的自适应信道估计. 中国激光. 43(9), (2016).

【5】Jia K J, Jin B, Hao L et al. Performance analysis of DCO-OFDM and ACO-OFDM systems in indoor visible light communications. Chinese Journal of Lasers. 44(8), (2017).
贾科军, 靳斌, 郝莉 等. 室内可见光通信中DCO-OFDM和ACO-OFDM系统性能分析. 中国激光. 44(8), (2017).

【6】Armstrong J and Lowery A J. Power efficient optical OFDM. Electronics Letters. 42(6), 370-372(2006).

【7】Dissanayake S D and Armstrong J. Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD systems. Journal of Lightwave Technology. 31(7), 1063-1072(2013).

【8】Chen L, Krongold B and Evans J. Diversity combining for asymmetrically clipped optical OFDM in IM/DD channels. [C]∥GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference, November 30-December 4, 2009, Honolulu, Hawaii, USA. New York: IEEE. 11170530, (2009).

【9】Dissanayake S D and Armstrong J. Novel techniques for combating DC offset in diversity combined ACO-OFDM. IEEE Communications Letters. 15(11), 1237-1239(2011).

【10】Mohammed M M A, He C W and Armstrong J. Diversity combining in layered asymmetrically clipped optical OFDM. Journal of Lightwave Technology. 35(11), 2078-2085(2017).

【11】Li J F, Liu X S, Li J K et al. Diversity combining via symmetry recovering for asymmetrically clipped optical OFDM. Optics Communications. 443, 86-89(2019).

【12】Li J F, Huang Z T, Liu X S et al. Hybrid time-frequency domain equalization for LED nonlinearity mitigation in OFDM-based VLC systems. Optics Express. 23(1), 611-619(2015).

【13】Jia K J, Jin B and Hao L. Performance analysis of optical OFDM adaptive bit-power loading in indoor visible light communications. Laser & Optoelectronics Progress. 56(3), (2019).
贾科军, 靳斌, 郝莉. 室内可见光通信OFDM自适应比特功率加载算法性能分析. 激光与光电子学进展. 56(3), (2019).

【14】Song X Q, Wang M Y, Xing S et al. Progress of orthogonal frequency division multiplexing based on visible light communication. Laser & Optoelectronics Progress. 55(12), (2018).
宋小庆, 王慕煜, 邢松 等. 基于可见光通信的正交频分复用技术研究进展. 激光与光电子学进展. 55(12), (2018).

【15】Tahar M and Wang T Q. Guerra Medina M F, et al. Experimental demonstration of diversity combining for asymmetrically clipped optical OFDM. IEEE Communications Letters. 20(5), 906-909(2016).

【16】Ranjha B and Kavehrad M. Hybrid asymmetrically clipped OFDM-based IM/DD optical wireless system. Journal of Optical Communications and Networking. 6(4), 387-396(2014).

【17】Lowery A J. Comparisons of spectrally-enhanced asymmetrically-clipped optical OFDM systems. Optics Express. 24(4), 3950-3966(2016).

【18】Neokosmidis I, Kamalakis T, Walewski J W et al. Impact of nonlinear LED transfer function on discrete multitone modulation: analytical approach. Journal of Lightwave Technology. 27(22), 4970-4978(2009).

引用该论文

Liu Xiaoshuang,Li Jianfeng,Li Jianke,Sun Lihui,Huang Zhitong,Kang Hongjun. Symmetry Recovery-Based ACO-OFDM Performance in LED Nonlinear Channel[J]. Laser & Optoelectronics Progress, 2019, 56(21): 210603

刘晓爽,李建锋,李建科,孙立辉,黄治同,康红俊. LED非线性信道下基于对称恢复的ACO-OFDM性能研究[J]. 激光与光电子学进展, 2019, 56(21): 210603

被引情况

【1】刘晓爽,李建锋,黄治同,李建科,孙立辉. 基于正交频分复用的LED非线性信道下的数字预畸变技术. 激光与光电子学进展, 2019, 56(24): 240601--1

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF