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A genetic algorithm method for optical wireless channel control

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Higgins, Matthew D., Green, Roger and Leeson, Mark S. (2009) A genetic algorithm method for optical wireless channel control. Journal of Lightwave Technology, Vol.27 (No.5-8). pp. 760-772. doi:10.1109/JLT.2008.928395 ISSN 0733-8724.

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Official URL: http://dx.doi.org/10.1109/JLT.2008.928395

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Abstract

A genetic algorithm controlled multispot transmitter is proposed as an alternative approach to optimizing the power distribution for single element receivers in fully diffuse mobile indoor optical wireless communication systems. By specifically tailoring the algorithm, it is shown that by dynamically altering the intensity of individual diffusion spots, a consistent power distribution, with negligible impact on bandwidth and rms delay spread, can be created in multiple rooms independent of reflectivity characteristics and user movement patterns. This advantageous adaptability removes the need for bespoke system design, aiming instead for the use of a more cost effective, optimal transmitter and receiver capable of deployment in multiple scenarios and applications. From the simulations conducted it is deduced, that implementing a receiver with a FOV = 55 degrees in conjunction with either of two notable algorithms, the dynamic range of the rooms, referenced against the peak received power, can be reduced by up to 26% when empty, and furthermore to within 12% of this optimized case when user movement perturbs the channel.

Item Type: Journal Article
Subjects: Q Science > QA Mathematics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Genetic algorithms, Optical communications, Wireless LANs
Journal or Publication Title: Journal of Lightwave Technology
Publisher: IEEE
ISSN: 0733-8724
Official Date: March 2009
Dates:
DateEvent
March 2009Published
Volume: Vol.27
Number: No.5-8
Number of Pages: 13
Page Range: pp. 760-772
DOI: 10.1109/JLT.2008.928395
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 13 December 2015
Date of first compliant Open Access: 13 December 2015

Data sourced from Thomson Reuters' Web of Knowledge

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