Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications
A new transmission and detection technique namely Double Carrier Modulation/Differential Detection (DCM/Diff.D) for outdoor optical wireless (OW) 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...
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| Format: | Article |
| Language: | English |
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Praise Worthy Prize
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16827/ http://psasir.upm.edu.my/id/eprint/16827/1/Stabilization%20of%20decision%20threshold%20for%20BER%20improvement%20using%20double%20carrier%20modulationdifferential%20detection%20for%20outdoor%20optical%20wireless%20communications.pdf |
| _version_ | 1848843070663032832 |
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| author | Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sahbudin, Ratna Kalos Zakiah |
| author_facet | Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sahbudin, Ratna Kalos Zakiah |
| 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 outdoor optical wireless (OW) 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 | 2025-11-15T08:09:11Z |
| format | Article |
| id | upm-16827 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:09:11Z |
| publishDate | 2009 |
| publisher | Praise Worthy Prize |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-168272017-09-28T07:47:28Z http://psasir.upm.edu.my/id/eprint/16827/ Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sahbudin, Ratna Kalos Zakiah A new transmission and detection technique namely Double Carrier Modulation/Differential Detection (DCM/Diff.D) for outdoor optical wireless (OW) 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. Praise Worthy Prize 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16827/1/Stabilization%20of%20decision%20threshold%20for%20BER%20improvement%20using%20double%20carrier%20modulationdifferential%20detection%20for%20outdoor%20optical%20wireless%20communications.pdf Hitam, Salasiah and Abdullah, Mohamad Khazani and Wan Adnan, Wan Azizun and Sahbudin, Ratna Kalos Zakiah (2009) Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications. International Review on Computers and Software, 4 (3). pp. 301-307. ISSN 1828-6003; ESSN: 1828-6011 http://www.praiseworthyprize.com/IRECOS-latest/IRECOS_vol_4_n_3.html |
| spellingShingle | Hitam, Salasiah Abdullah, Mohamad Khazani Wan Adnan, Wan Azizun Sahbudin, Ratna Kalos Zakiah Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title | Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title_full | Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title_fullStr | Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title_full_unstemmed | Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title_short | Stabilization of decision threshold for BER improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| title_sort | stabilization of decision threshold for ber improvement using double carrier modulation/differential detection for outdoor optical wireless communications |
| url | http://psasir.upm.edu.my/id/eprint/16827/ http://psasir.upm.edu.my/id/eprint/16827/ http://psasir.upm.edu.my/id/eprint/16827/1/Stabilization%20of%20decision%20threshold%20for%20BER%20improvement%20using%20double%20carrier%20modulationdifferential%20detection%20for%20outdoor%20optical%20wireless%20communications.pdf |