Analysis of an optical wireless receiver using a hemispherical lens with application in MIMO visible light communications

Wang, TQ; Sekercioglu, YA; Armstrong, J

Analysis of an optical wireless receiver using a hemispherical lens with application in MIMO visible light communications

Wang, TQ

Sekercioglu, YA Armstrong, J

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Publication Type:: Journal Article
Citation:: Journal of Lightwave Technology, 2013, 31 (11), pp. 1744 - 1754
Issue Date:: 2013-05-20

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Field	Value	Language
dc.contributor.author	Wang, TQ https://orcid.org/0000-0002-2326-4549	en_US
dc.contributor.author	Sekercioglu, YA	en_US
dc.contributor.author	Armstrong, J	en_US
dc.date.issued	2013-05-20	en_US
dc.identifier.citation	Journal of Lightwave Technology, 2013, 31 (11), pp. 1744 - 1754	en_US
dc.identifier.issn	0733-8724	en_US
dc.identifier.uri	http://hdl.handle.net/10453/116731
dc.description.abstract	White lighting LEDs offer great potential for high speed communications, especially for indoor applications. However, for their widespread adoption, two important issues need to be addressed: the lack of diversity in multiple-input multiple output (MIMO) systems, and the small field of view of receivers. In this paper, we describe a design using a hemispherical lens in the receiver that solves these problems. By using classical optics, we derive exact expressions for the channel gain and the optical power density of the projected images. Simulation results of a typical indoor scenario show that the new system has a wide field of view, and provides adequate channel gain for angles of incidence as large as 70 degrees. We present the distribution of optical power on the imaging plane for various receiving positions and tilted receivers over a number of representative indoor scenarios. They show that the images of LEDs are clearly distinguishable. The results demonstrate the presence of low channel correlations between individual transmitters and receivers. Consequently, this confirms that the new technique is capable of providing significant diversity order for MIMO optical wireless applications. © 1983-2012 IEEE.	en_US
dc.relation.ispartof	Journal of Lightwave Technology	en_US
dc.relation.isbasedon	10.1109/JLT.2013.2257685	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Optoelectronics & Photonics	en_US
dc.title	Analysis of an optical wireless receiver using a hemispherical lens with application in MIMO visible light communications	en_US
dc.type	Journal Article
utslib.citation.volume	11	en_US
utslib.citation.volume	31	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.issue	11	en_US
pubs.publication-status	Published	en_US
pubs.volume	31	en_US

Abstract:

White lighting LEDs offer great potential for high speed communications, especially for indoor applications. However, for their widespread adoption, two important issues need to be addressed: the lack of diversity in multiple-input multiple output (MIMO) systems, and the small field of view of receivers. In this paper, we describe a design using a hemispherical lens in the receiver that solves these problems. By using classical optics, we derive exact expressions for the channel gain and the optical power density of the projected images. Simulation results of a typical indoor scenario show that the new system has a wide field of view, and provides adequate channel gain for angles of incidence as large as 70 degrees. We present the distribution of optical power on the imaging plane for various receiving positions and tilted receivers over a number of representative indoor scenarios. They show that the images of LEDs are clearly distinguishable. The results demonstrate the presence of low channel correlations between individual transmitters and receivers. Consequently, this confirms that the new technique is capable of providing significant diversity order for MIMO optical wireless applications. © 1983-2012 IEEE.

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http://hdl.handle.net/10453/116731