Modulation Format Shifting Scheme for Optical Camera Communication

被引：8

作者：

Shi, Jin ^{[1
,2
]}

He, Jing ^{[1
]}

Jiang, Zhongwei ^{[1
]}

Chang, Gee-Kung ^{[2
]}

机构：

[1] Hunan Univ, Coll Comp Sci & Elect Engn, Changsha 410082, Peoples R China

[2] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30308 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2020年 / 32卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Modulation; Cameras; Light emitting diodes; Gray-scale; Decoding; Throughput; Optical imaging; Visible light communications (VLC); optical camera communication (OCC); light emitting diode; VISIBLE-LIGHT COMMUNICATION; MOBILE-PHONE CAMERA; SYSTEM;

D O I：

10.1109/LPT.2020.3012834

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose and experimentally demonstrate a simple and elegant modulation format shifting (MFS) scheme by continuously changing the modulation formats between OOK and Manchester signal for optical camera communication (OCC) using a commercially available mobile phone. Leveraging the MFS scheme, extra data bits are delivered without reducing the pixel width of each bit, resulting in higher transmitted data rate. Meanwhile, multi-thresholding scheme is proposed for modulation format identification and signal decoding at the receiver. The experimental results demonstrate that the proposed MFS scheme can achieve a data rate of 8.16 Kbps with the bit error rate (BER) of 2.9 x 10(-3) at the illuminance of 400 lux. In addition, compared with conventional OOK modulation, MFS scheme can remarkably improve the BER performance at the same data rate.

引用

页码：1167 / 1170

页数：4

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