Hybrid radio-visible light downlink performance in RF sensitive indoor environments

Syed Imtiaz Hussain, Mohamed Abdallah, Khalid Qaraqe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

Visible light communications (VLC) is an emerging technology for indoor wireless networks which uses unregulated visible spectrum in the optical range. Since it is safe to use visible light as communication medium in radio frequency (RF) prone environments, VLC may provide harmless downlink connectivity in such scenarios. In this paper, we analyze an indoor RF sensitive environment where RF propagation is blocked intentionally and the downlink is provided through a VLC network. However, this indoor VLC network is connected to the outside world through a relay using an RF wireless link to a base station. Hence, a hybrid radio-visible light wireless link enables the base station to reach the end users. The relay amplifies the received signal from the base station and modulates it onto the intensities of the optical transmitters which provide the indoor coverage. Due to several transmitters, user nodes may receive multiple line of sight signals resulting in a multi-tap channel. We investigate this indoor optical channel and propose a statistical model that fits in this situation. We use the proposed model to derive the expressions for outage probability of the hybrid downlink.

Original languageEnglish
Title of host publicationISCCSP 2014 - 2014 6th International Symposium on Communications, Control and Signal Processing, Proceedings
PublisherIEEE Computer Society
Pages81-84
Number of pages4
ISBN (Print)9781479928903
DOIs
Publication statusPublished - 2014
Event6th International Symposium on Communications, Control and Signal Processing, ISCCSP 2014 - Athens, Greece
Duration: 21 May 201423 May 2014

Other

Other6th International Symposium on Communications, Control and Signal Processing, ISCCSP 2014
CountryGreece
CityAthens
Period21/5/1423/5/14

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Keywords

  • channel modeling
  • optical wireless
  • relaying
  • Visible light communications

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Hussain, S. I., Abdallah, M., & Qaraqe, K. (2014). Hybrid radio-visible light downlink performance in RF sensitive indoor environments. In ISCCSP 2014 - 2014 6th International Symposium on Communications, Control and Signal Processing, Proceedings (pp. 81-84). [6877821] IEEE Computer Society. https://doi.org/10.1109/ISCCSP.2014.6877821