Performance enhancement of a digital pulse position modulation for FSO communication systems impaired by interchannel crosstalk, pointing error, and ASE noise

Performance enhancement of a digital pulse position modulation for FSO communication systems impaired by interchannel crosstalk, pointing error, and ASE noise | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Performance enhancement of a digital pulse position modulation for FSO communication systems impaired by interchannel crosstalk, pointing error, and ASE noise Ebrahim E. Elsayed, Bedir B. Yousif This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3841235/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract The performance evaluation and enhancement of a digital pulse-position modulation (DPPM) and on-off keying (OOK) modulation for the free-space optical (FSO) communication systems are investigated in this paper. We develop a moment generating function for the post-detection noise processes which takes into account a comprehensive set of the key amplifier and receiver parameters, including gain and amplified spontaneous emission (ASE) noise characteristics of FSO communications. The impact of atmospheric turbulence, inter-channel crosstalk, scintillation, pointing error, and ASE noise has been taken into account. To reduce the turbulence-induced scintillation and optical power penalty, the use of an aperture averaging has been proposed in this paper. Such a system, which could provide a power-efficient, a low cost, excessive flexibility and reliable or considered a massive solution in the bandwidth provision for future access networks, and together for higher data rate. Numerical results show the superiority of DPPM with improved receiver sensitivity at a bit-error-rate of 10 -12 about 9 dB for a coding level of 5 and FSO link length of 2500 m more than an equivalent OOK non-return-to-zero approach. Electrical Engineering Cell Communication and Signaling Full Text Additional Declarations The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3841235","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":265655343,"identity":"13134e95-04cd-4c78-978e-fd1d8fd59430","order_by":0,"name":"Ebrahim E. 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We develop a moment generating function for the post-detection noise processes which takes into account a comprehensive set of the key amplifier and receiver parameters, including gain and amplified spontaneous emission (ASE) noise characteristics of FSO communications. The impact of atmospheric turbulence, inter-channel crosstalk, scintillation, pointing error, and ASE noise has been taken into account. To reduce the turbulence-induced scintillation and optical power penalty, the use of an aperture averaging has been proposed in this paper. Such a system, which could provide a power-efficient, a low cost, excessive flexibility and reliable or considered a massive solution in the bandwidth provision for future access networks, and together for higher data rate. 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