Dimming control scheme based on hybrid LACO-SCFDM for visible light communications

被引：0
|
作者：
李思桥 [1 ]
张甜甜 [2 ]
乔耀军 [1 ]
周骥 [3 ]
机构：
[1] Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications
[2] Institute of Electronic and Information Industry, China Center for Information Industry Development
[3] Department of Electronic Engineering, College of Information Science and Technology, Jinan University
来源：
ChineseOpticsLetters | 2021年 / 19卷 / 04期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TN929.1 [光波通信、激光通信];
学科分类号：
0803 ;
摘要：
This paper proposes a hybrid layered asymmetrically clipped optical(HLACO) single-carrier frequency-division multiplexing(SCFDM) scheme for dimmable visible light communication. It designs a signal structure that combines layered asymmetrically clipped optical(LACO)-SCFDM and negative LACO-SCFDM in proportion for improving the inherent weaknesses of orthogonal frequency-division multiplexing(OFDM)-based dimmable schemes and further enhancing the system performance. Compared to the HLACO-OFDM-based dimming scheme, it obtains a lower bit error ratio and enables efficient communication over broader dimming range. Its spectral efficiency realizes 2.875 bit·s-1·Hz-1 within the dimming range of 30%–70%, and the attainable average spectral efficiency gains exceed at least 19.21% compared to other traditional dimmable schemes.
引用
收藏
页码：5 / 10
页数：6
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