Cooperative OFDM-based multi-user visible light communication systems with limited information

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

Abstract

In this paper, we consider a cooperative visible light communication (VLC) system in which multiple access points (APs) cooperate while transmitting data to a number of associated mobile terminals (MTs). The optimal transmission power control requires information about the exact locations of the MTs and hence a large amount of information needs to be processed at the controller and needs to be transferred from the APs to the controller. In this paper, we consider the system performance in the cases where the controller employs limited available information about the MTs. We consider a system in which the APs employ optical orthogonal frequency division multiplexing (OOFDM) with power control. A centralized controller determines the data electrical power based on the available information about the MTs. We consider three levels of information which are (i) the exact locations of the MTs, (ii) the exact numbers of MTs associated with the APs, and (iii) the average numbers of MTs possibly connected to the APs. Moreover, we consider the cases in which the controller optimizes the transmission powers based on various utility functions including maximizing the summation of the achieved rates of the MTs and maximizing the minimum achieved rate of any of the MTs. The numerical results show the effect of various system parameters on the achieved utility function including the average number of MTs, the APs and MTs locations, and the required illumination powers of the APs.

Original languageEnglish
Title of host publication2015 4th International Workshop on Optical Wireless Communications, IWOW 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages102-106
Number of pages5
ISBN (Electronic)9781467377263
DOIs
Publication statusPublished - 30 Nov 2015
Event4th International Workshop on Optical Wireless Communications, IWOW 2015 - Istanbul, Turkey
Duration: 7 Sep 201510 Sep 2015

Other

Other4th International Workshop on Optical Wireless Communications, IWOW 2015
CountryTurkey
CityIstanbul
Period7/9/1510/9/15

    Fingerprint

Keywords

  • AWGN
  • Conferences
  • Lighting
  • Manganese
  • OFDM
  • Tin

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Atomic and Molecular Physics, and Optics

Cite this

Kashef, M., Abdallah, M., & Qaraqe, K. (2015). Cooperative OFDM-based multi-user visible light communication systems with limited information. In 2015 4th International Workshop on Optical Wireless Communications, IWOW 2015 (pp. 102-106). [7342275] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IWOW.2015.7342275