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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
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Official URL: http://dx.doi.org/10.1109/JLT.2008.928395
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 | ||||
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| Subjects: | Q Science > QA Mathematics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science > 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: |
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| 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 |
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