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dc.contributor.authorChaaban, Anas
dc.contributor.authorMorvan, Jean-Marie
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2016-02-04T13:28:16Z
dc.date.available2016-02-04T13:28:16Z
dc.date.issued2016-02-03
dc.identifier.citationFree-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective 2016:1 IEEE Transactions on Communications
dc.identifier.issn0090-6778
dc.identifier.doi10.1109/TCOMM.2016.2524569
dc.identifier.urihttp://hdl.handle.net/10754/595582
dc.description.abstractThe capacity of the free-space optical channel is studied. A new recursive approach for bounding the capacity of the channel based on sphere-packing is proposed. This approach leads to new capacity upper bounds for a channel with a peak intensity constraint or an average intensity constraint. Under an average constraint only, the derived bound is tighter than an existing sphere-packing bound derived earlier by Farid and Hranilovic. The achievable rate of a truncated-Gaussian input distribution is also derived. It is shown that under both average and peak constraints, this achievable rate and the sphere-packing bounds are within a small gap at high SNR, leading to a simple high-SNR capacity approximation. Simple fitting functions that capture the best known achievable rate for the channel are provided. These functions can be of practical importance especially for the study of systems operating under atmospheric turbulence and misalignment conditions.
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7397995
dc.rights(c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
dc.subjectIntensity-modulation
dc.subjectcapacity bounds
dc.subjectsphere-packing
dc.titleFree-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Transactions on Communications
dc.eprint.versionPost-print
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personChaaban, Anas
kaust.personMorvan, Jean-Marie
kaust.personAlouini, Mohamed-Slim
refterms.dateFOA2018-06-13T13:57:39Z
dc.date.published-online2016-02-03
dc.date.published-print2016-03


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