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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Federation of Engineering Institutions of Islamic Countries
2008
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| Online Access: | http://psasir.upm.edu.my/id/eprint/13383/ 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 |
| _version_ | 1848842098469502976 |
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| author | Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sheikh Naimullah, Bibi Sarpinah |
| author_facet | Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sheikh Naimullah, Bibi Sarpinah |
| author_sort | Hitam, Salasiah |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T07:53:44Z |
| format | Article |
| id | upm-13383 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:53:44Z |
| publishDate | 2008 |
| publisher | Federation of Engineering Institutions of Islamic Countries |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-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 |
| 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 |
| title | 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_short | 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 |
| url | http://psasir.upm.edu.my/id/eprint/13383/ http://psasir.upm.edu.my/id/eprint/13383/ 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 |