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dc.contributor.authorChaaban, Anas
dc.contributor.authorMorvan, Jean-Marie
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2016-01-27T13:47:57Z
dc.date.available2016-01-27T13:47:57Z
dc.date.issued2015-12-03
dc.identifier.doi10.1109/IWOW.2015.7342269
dc.identifier.urihttp://hdl.handle.net/10754/595001
dc.description.abstractThe capacity of the intensity-modulation direct-detection (IM-DD) free-space optical channel with both average and peak intensity constraints is studied. A new capacity lower bound is derived by using a truncated-Gaussian input distribution. Numerical evaluation shows that this capacity lower bound is nearly tight at high signal-to-noise ratio (SNR), while it is shown analytically that the gap to capacity upper bounds is a small constant at high SNR. In particular, the gap to the high-SNR asymptotic capacity of the channel under either a peak or an average constraint is small. This leads to a simple approximation of the high SNR capacity. Additionally, a new capacity upper bound is derived using sphere-packing arguments. This bound is tight at high SNR for a channel with a dominant peak constraint.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7342269
dc.rights(c) 2015 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.titleFree-space optical communications with peak and average constraints: High SNR capacity approximation
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journal2015 4th International Workshop on Optical Wireless Communications (IWOW)
dc.conference.date7-8 Sept. 2015
dc.conference.name2015 4th International Workshop on Optical Wireless Communications (IWOW)
dc.conference.locationIstanbul, Turkey
dc.eprint.versionPost-print
dc.contributor.institutionUniversit´e de Lyon, CNRS, Universit´e Claude Bernard Lyon 1, ICJ UMR 5208, Villeurbanne F-69622 France
kaust.personChaaban, Anas
kaust.personMorvan, Jean-Marie
kaust.personAlouini, Mohamed-Slim
refterms.dateFOA2018-06-13T22:21:14Z
dc.date.published-online2015-12-03
dc.date.published-print2015-09


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