Non-orthogonal frequency shift keying for optical wireless link based on visible light emitting diode

7th International Conference on Applied Physics and Mathematics

物理学;数学

Won, Yong-Yuk^1 ; Yoon, Sang Min^2 ; Seo, Dongsun^1

Dept. of Electronic Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Gyeonggi-do, Yongin

17058, Korea, Republic of^1

School of Computer Science, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul

02707, Korea, Republic of^2

关键词: Bit per symbols;    Modulation techniques;    Non-orthogonal;    Optical wireless link;    Transmission capacities;    Visible light;    White LED;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/814/1/012021/pdf
DOI  :  10.1088/1742-6596/814/1/012021

来源: IOP

【 摘 要 】

A non-orthogonal frequency shift keying (NOFSK) modulation technique, which improves the transmission capacity of an optical wireless link based on a visible light emitting diode (LED), is proposed in this paper. A NOFSK signal with the modulation order of 4 is generated and then is transmitted using an optical wireless link based on the white LED in order to verify experimentally the proposed technique. One more bit per symbol are transmitted successfully showing the only 3% increase of 2-MHz physical bandwidth at the bit error rate (BER) below 10-5.