Show simple item record

dc.contributor.authorChaaban, Anas
dc.contributor.authorRezki, Zouheir
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2016-11-30T08:43:10Z
dc.date.available2016-11-30T08:43:10Z
dc.date.issued2016-11-29
dc.identifier.citationChaaban A, Rezki Z, Alouini M-S (2016) Low-SNR Capacity of Parallel IM-DD Optical Wireless Channels. IEEE Communications Letters: 1–1. Available: http://dx.doi.org/10.1109/LCOMM.2016.2633339.
dc.identifier.issn1089-7798
dc.identifier.doi10.1109/LCOMM.2016.2633339
dc.identifier.urihttp://hdl.handle.net/10754/621899
dc.description.abstractThe capacity of parallel intensity-modulation and direct-detection (IM-DD) optical wireless channels with total average intensity and per-channel peak intensity constraints is studied. The optimal intensity allocation at low signal-to-noise ratio (SNR) is derived, leading to the capacity-achieving onoff keying (OOK) distribution. Interestingly, while activating the strongest channel is optimal if (i) the peak intensity is fixed, this is not the case if (ii) the peak intensity is proportional to the average intensity. The minimum average optical intensity per bit is also studied, and is characterized for case (i) where it is achievable at low SNR. However, in case (ii), the average optical intensity per bit grows indefinitely as SNR decreases, indicating that lower optical intensity per bit can be achieved at moderate SNR than at low SNR.
dc.description.sponsorshipThis work was supported in part by the Qatar National Research Fund (a member of Qatar Foundation) under Grant NPRP 9-077-2-036. The statements made herein are solely the responsibility of the authors
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://ieeexplore.ieee.org/document/7762033/
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 per bit
dc.subjectParallel IM-DD channels
dc.subjectCapacity
dc.subjectIntensity allocation
dc.titleLow-SNR Capacity of Parallel IM-DD Optical Wireless Channels
dc.typeArticle
dc.contributor.departmentCommunication Theory Lab
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalIEEE Communications Letters
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Electrical and Computer Engineering, University of Idaho, Moscow, ID, USA
kaust.personChaaban, Anas
kaust.personRezki, Zouheir
kaust.personAlouini, Mohamed-Slim
refterms.dateFOA2018-06-13T15:26:47Z
dc.date.published-online2016-11-29
dc.date.published-print2017-03


Files in this item

Thumbnail
Name:
07762033.pdf
Size:
386.2Kb
Format:
PDF
Description:
Accepted Manuscript

This item appears in the following Collection(s)

Show simple item record