Friendly co‐existence of phosphorescent white and infrared LEDs in optical wireless communications. Issue 21 (16th February 2021)

• Record Type: Journal Article
• Authors: Stepniak, Grzegorz; Kowalczyk, Marcin; Siuzdak, Jerzy
• Is Part Of: IET communications. Volume 14:Issue 21(2020)
• Page Start: 3893
• Page End: 3897
• Publication Date: 2021-02-16
• Subjects: light emitting diodes -- phosphorescence -- free‐space optical communication -- multiplexing -- optical receivers -- optical filters -- optical crosstalk -- optical transmitters -- signal denoising; infrared channel -- IR channel -- receiver filter -- channel crosstalk -- digital signal processing -- friendly coexistence -- phosphorescent white LED -- infrared LED -- optical wireless communications -- transmission rate -- white phosphorescent light emitting diode -- colour multiplexing -- white phosphorescent LED transmitter communication‐illumination system; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2020.0193
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : In this study, the authors demonstrate that transmission rate in white phosphorescent light emitting diode (LED) transmitter communication‐illumination system can be increased significantly by simultaneous transmission of an additional infrared (IR) channel. Unlike in typical colour multiplexing, the IR channel does not require a dedicated receiver filter as the channel crosstalk can be removed using digital signal processing. Both channels can operate in synchronous or asynchronous mode. The experimental results in this study demonstrate a significant increase in the data rate.