Dimmable Optical Camera Communications With WDM Using RGB and Infrared LEDs

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-02-04 DOI:10.1109/LPT.2025.3538487

Hai Huang;Xiaodi You;Jin Shi;Jian Chen;Changyuan Yu;Mingyi Gao;Gangxiang Shen

引用次数: 0

Abstract

We propose an optical camera communication (OCC) system with dimming control, employing wavelength division multiplexing (WDM) with RGB and infrared (IR) light sources. The system uses pulse width modulation (PWM) for brightness adjustment, with IR transmission integrated into both PWM “ON” and “OFF” slots to compensate for data rate losses caused by dimming. To eliminate interference at the receiver, we implement a scheme that utilizes color correction and principal component analysis to separate the hybrid signal, with an optimization approach to fine-tune the IR intensity. This design achieves a data rate of 10.8 Kb/s at 30 fps under full dimming, offering a 33.3% improvement over RGB-only transmission. At a duty cycle of 0.5, the data rate further improves by 75.6%.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.