Joint link scheduling and brightness control for greening VLC-based indoor access networks

Sihua Shao, Abdallah Khreishah, Issa Khalil

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Demands for broadband wireless access services are expected to outstrip the spectrum capacity in the near-term 'spectrum crunch.' Deploying additional femtocells to address this challenge is cost-inefficient due to the backhaul challenge and the exorbitant system maintenance. According to an Alcatel-Lucent report, most mobile Internet access traffic happens indoors. Leveraging power line communication and the available indoor infrastructure, visible light communication (VLC) can be utilized with a small one-time cost. VLC also facilitates the great advantage of being able to jointly perform illumination and communications, and little extra power beyond illumination is required to empower communications, thus rendering wireless access with small power consumption. In this study, we investigate the problem of minimizing total power consumption of a general multiuser VLC indoor network while satisfying users' traffic demands and maintaining an acceptable level of illumination. We utilize the column-generation method to obtain an ϵ-bounded solution. Several practical implementation issues are integrated with the proposed algorithm, including different configurations of light source and ways of resolving the interference among VLC links. Through extensive simulations, we show that our approach reduces the power consumption of the state-of-the-art VLC-based scheduling algorithms by more than 60% while maintaining the required illumination.

Original languageEnglish
Article number7444560
Pages (from-to)148-161
Number of pages14
JournalJournal of Optical Communications and Networking
Volume8
Issue number3
DOIs
Publication statusPublished - 1 Mar 2016

Fingerprint

Telecommunication links
Luminance
Scheduling
Lighting
Electric power utilization
Communication
Femtocell
Scheduling algorithms
Telecommunication traffic
Light sources
Costs
Visible light communication
Internet

Keywords

  • Brightness control
  • Link scheduling
  • Optimization
  • Power consumption
  • Visible light communication (VLC)

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Joint link scheduling and brightness control for greening VLC-based indoor access networks. / Shao, Sihua; Khreishah, Abdallah; Khalil, Issa.

In: Journal of Optical Communications and Networking, Vol. 8, No. 3, 7444560, 01.03.2016, p. 148-161.

Research output: Contribution to journalArticle

@article{d932bb8ac773403083270ad35e03944b,
title = "Joint link scheduling and brightness control for greening VLC-based indoor access networks",
abstract = "Demands for broadband wireless access services are expected to outstrip the spectrum capacity in the near-term 'spectrum crunch.' Deploying additional femtocells to address this challenge is cost-inefficient due to the backhaul challenge and the exorbitant system maintenance. According to an Alcatel-Lucent report, most mobile Internet access traffic happens indoors. Leveraging power line communication and the available indoor infrastructure, visible light communication (VLC) can be utilized with a small one-time cost. VLC also facilitates the great advantage of being able to jointly perform illumination and communications, and little extra power beyond illumination is required to empower communications, thus rendering wireless access with small power consumption. In this study, we investigate the problem of minimizing total power consumption of a general multiuser VLC indoor network while satisfying users' traffic demands and maintaining an acceptable level of illumination. We utilize the column-generation method to obtain an ϵ-bounded solution. Several practical implementation issues are integrated with the proposed algorithm, including different configurations of light source and ways of resolving the interference among VLC links. Through extensive simulations, we show that our approach reduces the power consumption of the state-of-the-art VLC-based scheduling algorithms by more than 60{\%} while maintaining the required illumination.",
keywords = "Brightness control, Link scheduling, Optimization, Power consumption, Visible light communication (VLC)",
author = "Sihua Shao and Abdallah Khreishah and Issa Khalil",
year = "2016",
month = "3",
day = "1",
doi = "10.1364/JOCN.8.000148",
language = "English",
volume = "8",
pages = "148--161",
journal = "Journal of Optical Communications and Networking",
issn = "1943-0620",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

TY - JOUR

T1 - Joint link scheduling and brightness control for greening VLC-based indoor access networks

AU - Shao, Sihua

AU - Khreishah, Abdallah

AU - Khalil, Issa

PY - 2016/3/1

Y1 - 2016/3/1

N2 - Demands for broadband wireless access services are expected to outstrip the spectrum capacity in the near-term 'spectrum crunch.' Deploying additional femtocells to address this challenge is cost-inefficient due to the backhaul challenge and the exorbitant system maintenance. According to an Alcatel-Lucent report, most mobile Internet access traffic happens indoors. Leveraging power line communication and the available indoor infrastructure, visible light communication (VLC) can be utilized with a small one-time cost. VLC also facilitates the great advantage of being able to jointly perform illumination and communications, and little extra power beyond illumination is required to empower communications, thus rendering wireless access with small power consumption. In this study, we investigate the problem of minimizing total power consumption of a general multiuser VLC indoor network while satisfying users' traffic demands and maintaining an acceptable level of illumination. We utilize the column-generation method to obtain an ϵ-bounded solution. Several practical implementation issues are integrated with the proposed algorithm, including different configurations of light source and ways of resolving the interference among VLC links. Through extensive simulations, we show that our approach reduces the power consumption of the state-of-the-art VLC-based scheduling algorithms by more than 60% while maintaining the required illumination.

AB - Demands for broadband wireless access services are expected to outstrip the spectrum capacity in the near-term 'spectrum crunch.' Deploying additional femtocells to address this challenge is cost-inefficient due to the backhaul challenge and the exorbitant system maintenance. According to an Alcatel-Lucent report, most mobile Internet access traffic happens indoors. Leveraging power line communication and the available indoor infrastructure, visible light communication (VLC) can be utilized with a small one-time cost. VLC also facilitates the great advantage of being able to jointly perform illumination and communications, and little extra power beyond illumination is required to empower communications, thus rendering wireless access with small power consumption. In this study, we investigate the problem of minimizing total power consumption of a general multiuser VLC indoor network while satisfying users' traffic demands and maintaining an acceptable level of illumination. We utilize the column-generation method to obtain an ϵ-bounded solution. Several practical implementation issues are integrated with the proposed algorithm, including different configurations of light source and ways of resolving the interference among VLC links. Through extensive simulations, we show that our approach reduces the power consumption of the state-of-the-art VLC-based scheduling algorithms by more than 60% while maintaining the required illumination.

KW - Brightness control

KW - Link scheduling

KW - Optimization

KW - Power consumption

KW - Visible light communication (VLC)

UR - http://www.scopus.com/inward/record.url?scp=84964402898&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84964402898&partnerID=8YFLogxK

U2 - 10.1364/JOCN.8.000148

DO - 10.1364/JOCN.8.000148

M3 - Article

VL - 8

SP - 148

EP - 161

JO - Journal of Optical Communications and Networking

JF - Journal of Optical Communications and Networking

SN - 1943-0620

IS - 3

M1 - 7444560

ER -