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

页码：5 / 10

页数：6

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