Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions

In this letter, we analyze the performance improvement of on-off-keying free-space optical communication systems in atmospheric turbulence conditions due to coherent detection and the dynamic decision threshold (DDT) scheme. Our analytical results show that the DDT scheme provides a 5.7-dB power red...

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Main Authors: Wang, Zixiong, Zhong, Wende, Yu, Changyuan
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/102705
http://hdl.handle.net/10220/16433
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1027052020-03-07T14:00:34Z Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions Wang, Zixiong Zhong, Wende Yu, Changyuan School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering In this letter, we analyze the performance improvement of on-off-keying free-space optical communication systems in atmospheric turbulence conditions due to coherent detection and the dynamic decision threshold (DDT) scheme. Our analytical results show that the DDT scheme provides a 5.7-dB power reduction for achieving a bit error rate of 10-3 compared with the conventional fixed decision threshold scheme. In addition, the improvement achieved by the DDT scheme is related to the strength of amplitude and phase fluctuations, not to the power of the local oscillator. 2013-10-10T08:17:19Z 2019-12-06T20:59:25Z 2013-10-10T08:17:19Z 2019-12-06T20:59:25Z 2012 2012 Journal Article Wang, Z., Zhong, W., & Yu, C. (2012). Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions. IEEE photonics technology letters, 24(22), 2035-2037. 1041-1135 https://hdl.handle.net/10356/102705 http://hdl.handle.net/10220/16433 10.1109/LPT.2012.2218652 en IEEE photonics technology letters © 2012 IEEE
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Wang, Zixiong
Zhong, Wende
Yu, Changyuan
Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
description In this letter, we analyze the performance improvement of on-off-keying free-space optical communication systems in atmospheric turbulence conditions due to coherent detection and the dynamic decision threshold (DDT) scheme. Our analytical results show that the DDT scheme provides a 5.7-dB power reduction for achieving a bit error rate of 10-3 compared with the conventional fixed decision threshold scheme. In addition, the improvement achieved by the DDT scheme is related to the strength of amplitude and phase fluctuations, not to the power of the local oscillator.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Wang, Zixiong
Zhong, Wende
Yu, Changyuan
format Article
author Wang, Zixiong
Zhong, Wende
Yu, Changyuan
author_sort Wang, Zixiong
title Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
title_short Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
title_full Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
title_fullStr Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
title_full_unstemmed Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
title_sort performance improvement of ook free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
publishDate 2013
url https://hdl.handle.net/10356/102705
http://hdl.handle.net/10220/16433
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