Two-by-two user grouping for enhanced multipoint-to-multipoint free-space optical communications with pulse position modulation

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dc.contributor.author Abou-Rjeily, Chadi
dc.date.accessioned 2018-11-26T12:11:19Z
dc.date.available 2018-11-26T12:11:19Z
dc.date.copyright 2017 en_US
dc.date.issued 2018-11-26
dc.identifier.issn 1618-1336 en_US
dc.identifier.uri http://hdl.handle.net/10725/9793
dc.description.abstract In this paper, we consider the scenario of N collocated users communicating over Free-Space Optical (FSO) channels. We propose a novel cooperation scheme where the users are grouped together in groups of two for the sake of achieving enhanced diversity orders in a simple manner. In this context, instead of communicating independent binary Pulse Position Modulation (PPM) symbols over each of the N available links in a non-cooperative manner, the information from the different users will be combined and encoded in a joint manner. We propose a method for performing the joint encoding and we propose the structure of the 4-ary augmented constellation to be associated with the proposed cooperation scheme. A performance analysis is conducted over gamma-gamma channels reflecting the capability of the proposed scheme in enhancing the diversity order for all levels of background radiation. In particular, we prove that the diversity order is enhanced by the factor . en_US
dc.language.iso en en_US
dc.title Two-by-two user grouping for enhanced multipoint-to-multipoint free-space optical communications with pulse position modulation en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 200701131 en_US
dc.author.department Electrical And Computer Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Optik en_US
dc.journal.volume 151 en_US
dc.article.pages 18-33 en_US
dc.keywords Free-Space Optics en_US
dc.keywords FSO en_US
dc.keywords PPM en_US
dc.keywords Multiuser diversity en_US
dc.keywords Scintillation en_US
dc.keywords Cooperation en_US
dc.keywords Diversity gain en_US
dc.keywords Background noise en_US
dc.identifier.doi https://doi.org/10.1016/j.ijleo.2017.08.002 en_US
dc.identifier.ctation Abou-Rjeily, C. (2017). Two-by-two user grouping for enhanced multipoint-to-multipoint Free-Space Optical communications with Pulse Position Modulation. Optik-International Journal for Light and Electron Optics, 151, 18-33. en_US
dc.author.email chadi.abourjeily@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0030402617308938 en_US
dc.author.affiliation Lebanese American University en_US

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