Free-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective

Handle URI:
http://hdl.handle.net/10754/595582
Title:
Free-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective
Authors:
Chaaban, Anas ( 0000-0002-8713-5084 ) ; Morvan, Jean-Marie; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
The 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.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Free-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective 2016:1 IEEE Transactions on Communications
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Communications
Issue Date:
3-Feb-2016
DOI:
10.1109/TCOMM.2016.2524569
Type:
Article
ISSN:
0090-6778
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7397995
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChaaban, Anasen
dc.contributor.authorMorvan, Jean-Marieen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-02-04T13:28:16Zen
dc.date.available2016-02-04T13:28:16Zen
dc.date.issued2016-02-03en
dc.identifier.citationFree-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspective 2016:1 IEEE Transactions on Communicationsen
dc.identifier.issn0090-6778en
dc.identifier.doi10.1109/TCOMM.2016.2524569en
dc.identifier.urihttp://hdl.handle.net/10754/595582en
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.en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7397995en
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.en
dc.subjectIntensity-modulationen
dc.subjectcapacity boundsen
dc.subjectsphere-packingen
dc.titleFree-Space Optical Communications: Capacity Bounds, Approximations, and a New Sphere-Packing Perspectiveen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Transactions on Communicationsen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorChaaban, Anasen
kaust.authorMorvan, Jean-Marieen
kaust.authorAlouini, Mohamed-Slimen
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