Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links
In this paper, we study the performance analysis of free-space optical (FSO) system employing a constant-power variable-rate adaptive subcarrier intensity modulation (SIM) and utilizing phase-shift keying (PSK) over the Málaga atmospheric turbulence with pointing errors. According to a target bit-er...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950124000117 |
| _version_ | 1797306860522438656 |
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| author | Mohammad Javad Saber Mohammad Shokouhifar Imran Shafique Ansari |
| author_facet | Mohammad Javad Saber Mohammad Shokouhifar Imran Shafique Ansari |
| author_sort | Mohammad Javad Saber |
| collection | DOAJ |
| description | In this paper, we study the performance analysis of free-space optical (FSO) system employing a constant-power variable-rate adaptive subcarrier intensity modulation (SIM) and utilizing phase-shift keying (PSK) over the Málaga atmospheric turbulence with pointing errors. According to a target bit-error rate (BER) and the instantaneous signal-to-noise ratio (SNR), the adaptive strategy adopts the subcarrier PSK modulation order. More precisely, we develop new analytical expressions for the average BER, the upper bound on ergodic channel capacity for non-adaptive modulation, and the attainable spectral efficiency (SE) of an adaptive SIM-FSO communication system. According to the simulation results, it is possible to achieve an increase in SE under weak-to-strong turbulence conditions without the need to increase the average optical power transmitted or compromise the BER requirements. |
| first_indexed | 2024-03-08T00:47:56Z |
| format | Article |
| id | doaj.art-57a02335c32a417f82047bb890594a55 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-03-08T00:47:56Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-57a02335c32a417f82047bb890594a552024-02-15T05:26:17ZengElsevierResults in Optics2666-95012024-02-0114100614Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence linksMohammad Javad Saber0Mohammad Shokouhifar1Imran Shafique Ansari2Department of Electrical Engineering, Persian Gulf University, Bushehr 75169, Iran; Corresponding author.Department of Electrical and Computer Engineering, Shahid Beheshti University, Tehran 1983969411, IranSchool of Engineering, University of Glasgow, Glasgow G12 8QQ, UKIn this paper, we study the performance analysis of free-space optical (FSO) system employing a constant-power variable-rate adaptive subcarrier intensity modulation (SIM) and utilizing phase-shift keying (PSK) over the Málaga atmospheric turbulence with pointing errors. According to a target bit-error rate (BER) and the instantaneous signal-to-noise ratio (SNR), the adaptive strategy adopts the subcarrier PSK modulation order. More precisely, we develop new analytical expressions for the average BER, the upper bound on ergodic channel capacity for non-adaptive modulation, and the attainable spectral efficiency (SE) of an adaptive SIM-FSO communication system. According to the simulation results, it is possible to achieve an increase in SE under weak-to-strong turbulence conditions without the need to increase the average optical power transmitted or compromise the BER requirements.http://www.sciencedirect.com/science/article/pii/S2666950124000117Subcarrier intensity modulationFree-space optical (FSO) communicationsMálaga turbulenceBit error rateSpectral efficiencyChannel capacity |
| spellingShingle | Mohammad Javad Saber Mohammad Shokouhifar Imran Shafique Ansari Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links Results in Optics Subcarrier intensity modulation Free-space optical (FSO) communications Málaga turbulence Bit error rate Spectral efficiency Channel capacity |
| title | Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links |
| title_full | Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links |
| title_fullStr | Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links |
| title_full_unstemmed | Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links |
| title_short | Performance analytics of adaptive subcarrier intensity modulated free-space optical communications over general Málaga turbulence links |
| title_sort | performance analytics of adaptive subcarrier intensity modulated free space optical communications over general malaga turbulence links |
| topic | Subcarrier intensity modulation Free-space optical (FSO) communications Málaga turbulence Bit error rate Spectral efficiency Channel capacity |
| url | http://www.sciencedirect.com/science/article/pii/S2666950124000117 |
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