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
收藏
页码：1167 / 1170
页数：4
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