The University of Southampton
University of Southampton Institutional Repository

Resource allocation under delay-guarantee constraints for visible-light communication

Resource allocation under delay-guarantee constraints for visible-light communication
Resource allocation under delay-guarantee constraints for visible-light communication
Visible Light Communications (VLC) relying on commercially available Light-Emitting Diode (LED) transmitters offer a huge data rate potential in this license-free spectral domain, whilst simultaneously satisfying energy-efficient conventional illumination demands. In a LED based VLC system, the achievable data rate may be severely degraded owing to the interference, when the VLC system employs the Unity Frequency Reuse (UFR) approach. In order to mitigate the effects of interference, we propose a pair of interference avoidance approaches, namely Frequency Reuse (FR) based transmission and Vectored Transmission (VT). Furthermore, the Resource Allocation (RA) problems of indoor Mobile Terminals (MTs) are investigated based on different transmission strategies. Inspired by the concept of Effective Capacity (EC), we formulate our RA optimization problems applying proportional fairness, while satisfying specific statistical delay constraints. Our optimization procedure solves the resource allocation problem of indoor MTs with the aid of a decentralized algorithm. Simulation results are also presented for quantifying the performance of the proposed algorithm. It is shown that both of our interference avoidance approaches are capable of reducing the interference, hence improving the overall performance. Furthermore, it is also observed that our VT transmission is capable of achieving a higher effective capacity than the FR approach, when the statistical delay requirements are loose. By contrast, the FR based transmission attains the best performance, when we tighten the delay requirements.
7301-7312
Jin, Fan
2494e7f1-0077-4ee7-a274-65cb7a8a5fbd
Li, Xuan
ef7e6313-a655-4e1a-bdec-f8a024f80528
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Jin, Fan
2494e7f1-0077-4ee7-a274-65cb7a8a5fbd
Li, Xuan
ef7e6313-a655-4e1a-bdec-f8a024f80528
Zhang, Rong
3be8f78f-f079-4a3f-a151-76ecd5f378f4
Dong, Chen
dac9f067-33fb-47a2-b789-b3d131d8d866
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Jin, Fan, Li, Xuan, Zhang, Rong, Dong, Chen and Hanzo, Lajos (2016) Resource allocation under delay-guarantee constraints for visible-light communication. IEEE Access, 4, 7301-7312. (doi:10.1109/ACCESS.2016.2564298).

Record type: Article

Abstract

Visible Light Communications (VLC) relying on commercially available Light-Emitting Diode (LED) transmitters offer a huge data rate potential in this license-free spectral domain, whilst simultaneously satisfying energy-efficient conventional illumination demands. In a LED based VLC system, the achievable data rate may be severely degraded owing to the interference, when the VLC system employs the Unity Frequency Reuse (UFR) approach. In order to mitigate the effects of interference, we propose a pair of interference avoidance approaches, namely Frequency Reuse (FR) based transmission and Vectored Transmission (VT). Furthermore, the Resource Allocation (RA) problems of indoor Mobile Terminals (MTs) are investigated based on different transmission strategies. Inspired by the concept of Effective Capacity (EC), we formulate our RA optimization problems applying proportional fairness, while satisfying specific statistical delay constraints. Our optimization procedure solves the resource allocation problem of indoor MTs with the aid of a decentralized algorithm. Simulation results are also presented for quantifying the performance of the proposed algorithm. It is shown that both of our interference avoidance approaches are capable of reducing the interference, hence improving the overall performance. Furthermore, it is also observed that our VT transmission is capable of achieving a higher effective capacity than the FR approach, when the statistical delay requirements are loose. By contrast, the FR based transmission attains the best performance, when we tighten the delay requirements.

Text
RA_VLC_twocolumn.pdf - Accepted Manuscript
Available under License Creative Commons Attribution.
Download (927kB)
Text
07465687.pdf - Version of Record
Available under License Creative Commons Attribution.
Download (900kB)

More information

Accepted/In Press date: 27 April 2016
e-pub ahead of print date: 5 May 2016
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 398128
URI: http://eprints.soton.ac.uk/id/eprint/398128
PURE UUID: b5e0f749-92c3-4690-a2a7-42b334eb1514
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 20 Jul 2016 09:33
Last modified: 17 Dec 2019 02:03

Export record

Altmetrics

Contributors

Author: Fan Jin
Author: Xuan Li
Author: Rong Zhang
Author: Chen Dong
Author: Lajos Hanzo ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×