Improvement of the Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using a Diffused Gaussian Beam

Dehao Wu; Zabih Ghassemlooy; Hoa Le Minh; Sujan Rajbhandari; Anthony Boucouvalas

doi:10.1109/LCOMM.2012.060812.120803

Improvement of the Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using a Diffused Gaussian Beam

Dehao Wu, Zabih Ghassemlooy, Hoa Le Minh, Sujan Rajbhandari, Anthony Boucouvalas

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The multipath dispersion in a non-directed line-of-sight (LOS) indoor optical wireless communications (OWC) channel limits the transmission bandwidth. In this study, we improve the transmission bandwidth by employing a TEM_{00} mode laser beam and an alignment-free light shaping diffuser (LSD). We derive a new expression for the radiation field distribution of the diffused Gaussian beam (DGB) and its multipath impulse response. The transmission bandwidth is determined based on the numerical simulation of the root mean square (RMS) delay spread in a room. Results show that indoor OWC systems employing DGB offers significantly higher transmission bandwidth compared to the Lambertian beam (LB) for a wide divergence angle.

Original language	English
Pages (from-to)	1316-1319
Journal	IEEE Communications Letters
Volume	16
Issue number	8
DOIs	https://doi.org/10.1109/LCOMM.2012.060812.120803
Publication status	Published - 2012

Keywords

optical wireless communications
diffused Gaussian beam
multipath dispersion and RMS delay spread

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10.1109/LCOMM.2012.060812.120803

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title = "Improvement of the Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using a Diffused Gaussian Beam",

abstract = "The multipath dispersion in a non-directed line-of-sight (LOS) indoor optical wireless communications (OWC) channel limits the transmission bandwidth. In this study, we improve the transmission bandwidth by employing a TEM_{00} mode laser beam and an alignment-free light shaping diffuser (LSD). We derive a new expression for the radiation field distribution of the diffused Gaussian beam (DGB) and its multipath impulse response. The transmission bandwidth is determined based on the numerical simulation of the root mean square (RMS) delay spread in a room. Results show that indoor OWC systems employing DGB offers significantly higher transmission bandwidth compared to the Lambertian beam (LB) for a wide divergence angle.",

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AU - Wu, Dehao

AU - Ghassemlooy, Zabih

AU - Le Minh, Hoa

AU - Rajbhandari, Sujan

AU - Boucouvalas, Anthony

PY - 2012

Y1 - 2012

N2 - The multipath dispersion in a non-directed line-of-sight (LOS) indoor optical wireless communications (OWC) channel limits the transmission bandwidth. In this study, we improve the transmission bandwidth by employing a TEM_{00} mode laser beam and an alignment-free light shaping diffuser (LSD). We derive a new expression for the radiation field distribution of the diffused Gaussian beam (DGB) and its multipath impulse response. The transmission bandwidth is determined based on the numerical simulation of the root mean square (RMS) delay spread in a room. Results show that indoor OWC systems employing DGB offers significantly higher transmission bandwidth compared to the Lambertian beam (LB) for a wide divergence angle.

AB - The multipath dispersion in a non-directed line-of-sight (LOS) indoor optical wireless communications (OWC) channel limits the transmission bandwidth. In this study, we improve the transmission bandwidth by employing a TEM_{00} mode laser beam and an alignment-free light shaping diffuser (LSD). We derive a new expression for the radiation field distribution of the diffused Gaussian beam (DGB) and its multipath impulse response. The transmission bandwidth is determined based on the numerical simulation of the root mean square (RMS) delay spread in a room. Results show that indoor OWC systems employing DGB offers significantly higher transmission bandwidth compared to the Lambertian beam (LB) for a wide divergence angle.

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KW - diffused Gaussian beam

KW - multipath dispersion and RMS delay spread

U2 - 10.1109/LCOMM.2012.060812.120803

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VL - 16

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EP - 1319

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 8

ER -

Improvement of the Transmission Bandwidth for Indoor Optical Wireless Communication Systems Using a Diffused Gaussian Beam

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Keywords

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