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BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level

A new transmission and detection technique namely Double Carrier Modulation/Differential Detection (DCM/Diff.D) for free space optical (FSO) is proposed. The technique employs two beams, one modulated with the data, the other with the inverted version of the same data. A differential detection techn...

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Main Authors: Hitam, Salasiah, Abdullah, Mohamad Khazani, Wan Adnan, Wan Azizun, Sheikh Naimullah, Bibi Sarpinah
Format: Article
Language:English
Published: Federation of Engineering Institutions of Islamic Countries 2008
Online Access:http://psasir.upm.edu.my/id/eprint/13383/1/BER%20improvement%20for%20multi-gigabits-per-second%20free%20space%20optical%20communications%20by%20stabilizing%20the%20decision%20threshold%20level.pdf
http://psasir.upm.edu.my/id/eprint/13383/
http://ijet.feiic.org/index.php/volume-5-2008
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spelling my.upm.eprints.133832018-07-02T02:53:44Z http://psasir.upm.edu.my/id/eprint/13383/ BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sheikh Naimullah, Bibi Sarpinah A new transmission and detection technique namely Double Carrier Modulation/Differential Detection (DCM/Diff.D) for free space optical (FSO) is proposed. The technique employs two beams, one modulated with the data, the other with the inverted version of the same data. A differential detection technique is used at the receiver whereby the inverted data are used as the reference to perform the decision making, as opposed to the fixed threshold used in conventional technique. The probability of error under threshold instability in DCM/Diff.D technique and Intensity Modulation/Direct Detection (IM/DD) technique, is compared. A simulation under heavy rainfall condition of 8.33x10-4 cm/sec at bit rate of 2.5 Gbps with 0 dBm of optical transmitter power shows that this technique achieves an improvement of more then twice of distance of the conventional IM/DD. Federation of Engineering Institutions of Islamic Countries 2008 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/13383/1/BER%20improvement%20for%20multi-gigabits-per-second%20free%20space%20optical%20communications%20by%20stabilizing%20the%20decision%20threshold%20level.pdf Hitam, Salasiah and Abdullah, Mohamad Khazani and Wan Adnan, Wan Azizun and Sheikh Naimullah, Bibi Sarpinah (2008) BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level. International Journal of Engineering and Technology, 5 (2). pp. 83-91. ISSN 1823-1039 http://ijet.feiic.org/index.php/volume-5-2008
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description A new transmission and detection technique namely Double Carrier Modulation/Differential Detection (DCM/Diff.D) for free space optical (FSO) is proposed. The technique employs two beams, one modulated with the data, the other with the inverted version of the same data. A differential detection technique is used at the receiver whereby the inverted data are used as the reference to perform the decision making, as opposed to the fixed threshold used in conventional technique. The probability of error under threshold instability in DCM/Diff.D technique and Intensity Modulation/Direct Detection (IM/DD) technique, is compared. A simulation under heavy rainfall condition of 8.33x10-4 cm/sec at bit rate of 2.5 Gbps with 0 dBm of optical transmitter power shows that this technique achieves an improvement of more then twice of distance of the conventional IM/DD.
format Article
author Hitam, Salasiah
Abdullah, Mohamad Khazani
Wan Adnan, Wan Azizun
Sheikh Naimullah, Bibi Sarpinah
spellingShingle Hitam, Salasiah
Abdullah, Mohamad Khazani
Wan Adnan, Wan Azizun
Sheikh Naimullah, Bibi Sarpinah
BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
author_facet Hitam, Salasiah
Abdullah, Mohamad Khazani
Wan Adnan, Wan Azizun
Sheikh Naimullah, Bibi Sarpinah
author_sort Hitam, Salasiah
title BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
title_short BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
title_full BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
title_fullStr BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
title_full_unstemmed BER improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
title_sort ber improvement for multi-gigabits-per-second free space optical communications by stabilizing the decision threshold level
publisher Federation of Engineering Institutions of Islamic Countries
publishDate 2008
url http://psasir.upm.edu.my/id/eprint/13383/1/BER%20improvement%20for%20multi-gigabits-per-second%20free%20space%20optical%20communications%20by%20stabilizing%20the%20decision%20threshold%20level.pdf
http://psasir.upm.edu.my/id/eprint/13383/
http://ijet.feiic.org/index.php/volume-5-2008
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score 13.211869

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