Link reliability improvement for optical wireless communication systems with temporal-domain diversity reception

C. H. Kwok; Richard V. Penty; Ian H. White

doi:10.1109/LPT.2008.919453

Link reliability improvement for optical wireless communication systems with temporal-domain diversity reception

C. H. Kwok, Richard V. Penty, Ian H. White

Vice Chancellor's Office

University of Cambridge

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

25 Citations (SciVal)

Abstract

We experimentally demonstrate a simple temporal-domain diversity reception (TD-DR) scheme to enhance the reliability of optical wireless transmission links corrupted by atmospheric turbulence (AT) effects. Both nonreturn-to-zero and Manchester encoded on-off-keying modulation schemes are studied in laboratory environments at a 1.25-Gb/s data rate. AT effects are emulated as a slowly varying log-normal intensity variation for the received signal. System bit-error ratio is tracked for the performance evaluation, and results show that the outage probability due to the AT-induced intensity fluctuation for a 1.25-Gb/s link using Manchester coding is reduced from 3.2%±0.1% to <0.1%, when the TD-DR is employed.

Original language	English
Pages (from-to)	700-702
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	20
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2008.919453
Publication status	Published - 1 May 2008

Keywords

Atmospheric turbulence (AT)
Diversity reception (DR)
Free space optics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2008.919453

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title = "Link reliability improvement for optical wireless communication systems with temporal-domain diversity reception",

abstract = "We experimentally demonstrate a simple temporal-domain diversity reception (TD-DR) scheme to enhance the reliability of optical wireless transmission links corrupted by atmospheric turbulence (AT) effects. Both nonreturn-to-zero and Manchester encoded on-off-keying modulation schemes are studied in laboratory environments at a 1.25-Gb/s data rate. AT effects are emulated as a slowly varying log-normal intensity variation for the received signal. System bit-error ratio is tracked for the performance evaluation, and results show that the outage probability due to the AT-induced intensity fluctuation for a 1.25-Gb/s link using Manchester coding is reduced from 3.2%±0.1% to <0.1%, when the TD-DR is employed.",

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AU - Kwok, C. H.

AU - Penty, Richard V.

AU - White, Ian H.

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N2 - We experimentally demonstrate a simple temporal-domain diversity reception (TD-DR) scheme to enhance the reliability of optical wireless transmission links corrupted by atmospheric turbulence (AT) effects. Both nonreturn-to-zero and Manchester encoded on-off-keying modulation schemes are studied in laboratory environments at a 1.25-Gb/s data rate. AT effects are emulated as a slowly varying log-normal intensity variation for the received signal. System bit-error ratio is tracked for the performance evaluation, and results show that the outage probability due to the AT-induced intensity fluctuation for a 1.25-Gb/s link using Manchester coding is reduced from 3.2%±0.1% to <0.1%, when the TD-DR is employed.

AB - We experimentally demonstrate a simple temporal-domain diversity reception (TD-DR) scheme to enhance the reliability of optical wireless transmission links corrupted by atmospheric turbulence (AT) effects. Both nonreturn-to-zero and Manchester encoded on-off-keying modulation schemes are studied in laboratory environments at a 1.25-Gb/s data rate. AT effects are emulated as a slowly varying log-normal intensity variation for the received signal. System bit-error ratio is tracked for the performance evaluation, and results show that the outage probability due to the AT-induced intensity fluctuation for a 1.25-Gb/s link using Manchester coding is reduced from 3.2%±0.1% to <0.1%, when the TD-DR is employed.

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Link reliability improvement for optical wireless communication systems with temporal-domain diversity reception

Abstract

Keywords

ASJC Scopus subject areas

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