Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation
A hybrid fibre and free-space optical communication link using digital pulse-position modulation (DPPM) in a wavelength-division-multiplexing system is proposed. Such a system, which could provide a power efficient, robust and flexible solution to high-speed access networks, is a contender for a pas...
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| Format: | Article |
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Institution of Engineering and Technology (IET)
2016
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| Online Access: | https://eprints.nottingham.ac.uk/35492/ |
| _version_ | 1848795091716538368 |
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| author | Mbah, Afamefuna Maduka Walker, John G. Phillips, Andrew J. |
| author_facet | Mbah, Afamefuna Maduka Walker, John G. Phillips, Andrew J. |
| author_sort | Mbah, Afamefuna Maduka |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A hybrid fibre and free-space optical communication link using digital pulse-position modulation (DPPM) in a wavelength-division-multiplexing system is proposed. Such a system, which could provide a power efficient, robust and flexible solution to high-speed access networks, is a contender for a passive optical network solution and could readily be deployed in areas with restrictions in optical fibre installation, or alternatively as a disaster recovery network. Interchannel crosstalk and atmospheric turbulence are major impairments in such a system and could combine in some cases to degrade the system. Both impairments are investigated here and the results are presented in the form of bit error probability, required optical transmission power and power penalties. Depending on the position of the interferer relative to the desired user, power penalties of about 0.2–3.0 dB for weak turbulence and above 20 dB for strong turbulence regimes are reported for bit error rate of 10−6. DPPM scheme with a coding level of 2 show about 2 dB improvements over on–off-keying scheme. |
| first_indexed | 2025-11-14T19:26:35Z |
| format | Article |
| id | nottingham-35492 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:26:35Z |
| publishDate | 2016 |
| publisher | Institution of Engineering and Technology (IET) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-354922020-05-04T17:28:57Z https://eprints.nottingham.ac.uk/35492/ Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation Mbah, Afamefuna Maduka Walker, John G. Phillips, Andrew J. A hybrid fibre and free-space optical communication link using digital pulse-position modulation (DPPM) in a wavelength-division-multiplexing system is proposed. Such a system, which could provide a power efficient, robust and flexible solution to high-speed access networks, is a contender for a passive optical network solution and could readily be deployed in areas with restrictions in optical fibre installation, or alternatively as a disaster recovery network. Interchannel crosstalk and atmospheric turbulence are major impairments in such a system and could combine in some cases to degrade the system. Both impairments are investigated here and the results are presented in the form of bit error probability, required optical transmission power and power penalties. Depending on the position of the interferer relative to the desired user, power penalties of about 0.2–3.0 dB for weak turbulence and above 20 dB for strong turbulence regimes are reported for bit error rate of 10−6. DPPM scheme with a coding level of 2 show about 2 dB improvements over on–off-keying scheme. Institution of Engineering and Technology (IET) 2016-02-01 Article PeerReviewed Mbah, Afamefuna Maduka, Walker, John G. and Phillips, Andrew J. (2016) Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation. IET Optoelectronics, 10 (1). pp. 11-20. ISSN 1751-8776 Free-space optical links; Optical fibre networks; Optical communication devices equipment and systems; Multiplexing and switching in optical communication http://digital-library.theiet.org/content/journals/10.1049/iet-opt.2015.0007# doi:10.1049/iet-opt.2015.0007 doi:10.1049/iet-opt.2015.0007 |
| spellingShingle | Free-space optical links; Optical fibre networks; Optical communication devices equipment and systems; Multiplexing and switching in optical communication Mbah, Afamefuna Maduka Walker, John G. Phillips, Andrew J. Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title | Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title_full | Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title_fullStr | Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title_full_unstemmed | Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title_short | Performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| title_sort | performance evaluation of turbulence-accentuated interchannel crosstalk for hybrid fibre and free-space optical wavelength-division-multiplexing systems using digital pulse-position modulation |
| topic | Free-space optical links; Optical fibre networks; Optical communication devices equipment and systems; Multiplexing and switching in optical communication |
| url | https://eprints.nottingham.ac.uk/35492/ https://eprints.nottingham.ac.uk/35492/ https://eprints.nottingham.ac.uk/35492/ |