Differential signaling spread-spectrum modulation of the LED visible light wireless communications using a mobile-phone camera

被引：10

作者：

Chen, Shih-Hao ^{[1
]}

Chow, Chi-Wai

机构：

[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

来源：

OPTICS COMMUNICATIONS | 2015年 / 336卷

关键词：

Visible light communication (VLC); Optical wireless communication (OWC); Spread spectrum modulation (SSM); PERFORMANCE; SCHEME;

D O I：

10.1016/j.optcom.2014.10.025

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Visible light communication (VLC) using spread spectrum modulation (SSM) and differential signaling (DS), detected by a mobile-phone camera is proposed and demonstrated for the first time to provide high immunity to background ambient light interference. The SSM signal provides the coding gain while the DS scheme enhances the clock recovery particular under high background ambient light. Experiment results confirm the feasibility of the proposed scheme, showing that the proposed system has 6-dB gain comparing with the traditional on-off keying (OOK) modulation under background ambient light of 3000 lux. The direct incident ambient light to the mobile-phone camera is 520 lux. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：240 / 242

页数：3

共 33 条

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