Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 36,
  • Issue 2,
  • pp. 510-518
  • (2018)

Enabling Technologies for High-Speed Visible Light Communication Employing CAP Modulation

Not Accessible

Your library or personal account may give you access

Abstract

High-speed light emitting diode (LED) based visible light communication (VLC) system is restricted by the limited LED bandwidth, low detector sensitivity, and linear and nonlinear distortions. Thus, single- and two-cascaded constant-resistance symmetrical bridged-T amplitude hardware pre-equalizers, carrierless amplitude and phase (CAP) modulation, and a three-stage hybrid postequalizer are investigated to increase transmission data rate for a high-speed LED-based VLC system. The schemes utilized by the hybrid postequalizer are modified cascaded multimodulus algorithm, Volterra series based nonlinear compensation algorithm and decision-directed least mean square algorithm. With these technologies, we successfully implement high-speed CAP32, CAP64, and CAP128 VLC experimental system over 1-m free space transmission with bit error rate under the hard decision-forward error correction threshold of 3.8 × 10–3. System performance improvement employing these key technologies is also validated through experimental demonstration. With the superposition of each stage of the hybrid postequalizer, system performance will be improved. And utilizing two-cascaded hardware pre-equalizer will provide more accurate channel compensation than a single pre-equalizer.

© 2017 IEEE

PDF Article
More Like This
4.5-Gb/s RGB-LED based WDM visible light communication system employing CAP modulation and RLS based adaptive equalization

Yiguang Wang, Xingxing Huang, Li Tao, Jianyang Shi, and Nan Chi
Opt. Express 23(10) 13626-13633 (2015)

3.76-Gbps yellow-light visible light communication system over 1.2 m free space transmission utilizing a Si-substrate LED and a cascaded pre-equalizer network

Jianyang Shi, Weihuang Xiao, Yinaer Ha, Wenqing Niu, Zengyi Xu, Ouhan Huang, Yu Liu, Ziwei Li, Chao Shen, Junwen Zhang, Jianli Zhang, Guangxu Wang, Shaohua Yu, and Nan Chi
Opt. Express 30(18) 33337-33352 (2022)

Real-time investigation of CAP transceivers with hybrid digital equalization for visible light communication

Yanfeng Mao, Xianqing Jin, Weidong Pan, Weijie Liu, Meiyu Jin, Chen Gong, and Zhengyuan Xu
Opt. Express 27(7) 9382-9393 (2019)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved