On the Capacity of the 2-User IM-DD Optical Broadcast Channel

Handle URI:
http://hdl.handle.net/10754/621327
Title:
On the Capacity of the 2-User IM-DD Optical Broadcast Channel
Authors:
Chaaban, Anas ( 0000-0002-8713-5084 ) ; Rezki, Zouheir; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
The capacity of the intensity-modulation directdetection (IM-DD) optical broadcast channel (OBC) is investigated. The OBC is modeled as a Gaussian channel with input-independent noise and both average and peak input constraints. Outer and inner bounds on the capacity region are derived. The outer bounds are based on Bergmans' approach. The inner bounds are based on superposition coding with either truncated-Gaussian or discrete input distributions. By comparing the bounds, we observe that the truncated- Gaussian distribution is nearly optimal at high signal-to-noise ratio (SNR). At low SNR on the other hand, on-off keying (OOK) combined with time-division multiple-access (TDMA) is optimal; it achieves any point on the boundary of the developed outer bound. This is interesting in practice since both OOK and TDMA have low complexity. At moderate SNR (typically [0; 8] dB), a discrete input distribution with a small alphabet size achieves a fairly good performance. © 2015 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Chaaban A, Rezki Z, Alouini M-S (2015) On the Capacity of the 2-User IM-DD Optical Broadcast Channel. 2015 IEEE Globecom Workshops (GC Wkshps). Available: http://dx.doi.org/10.1109/GLOCOMW.2015.7414078.
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2015 IEEE Globecom Workshops (GC Wkshps)
Conference/Event name:
IEEE Globecom Workshops, GC Wkshps 2015
Issue Date:
26-Feb-2016
DOI:
10.1109/GLOCOMW.2015.7414078
Type:
Conference Paper
Additional Links:
http://ieeexplore.ieee.org/document/7414078
Appears in Collections:
Conference Papers; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChaaban, Anasen
dc.contributor.authorRezki, Zouheiren
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2016-11-03T06:57:45Z-
dc.date.available2016-11-03T06:57:45Z-
dc.date.issued2016-02-26en
dc.identifier.citationChaaban A, Rezki Z, Alouini M-S (2015) On the Capacity of the 2-User IM-DD Optical Broadcast Channel. 2015 IEEE Globecom Workshops (GC Wkshps). Available: http://dx.doi.org/10.1109/GLOCOMW.2015.7414078.en
dc.identifier.doi10.1109/GLOCOMW.2015.7414078en
dc.identifier.urihttp://hdl.handle.net/10754/621327-
dc.description.abstractThe capacity of the intensity-modulation directdetection (IM-DD) optical broadcast channel (OBC) is investigated. The OBC is modeled as a Gaussian channel with input-independent noise and both average and peak input constraints. Outer and inner bounds on the capacity region are derived. The outer bounds are based on Bergmans' approach. The inner bounds are based on superposition coding with either truncated-Gaussian or discrete input distributions. By comparing the bounds, we observe that the truncated- Gaussian distribution is nearly optimal at high signal-to-noise ratio (SNR). At low SNR on the other hand, on-off keying (OOK) combined with time-division multiple-access (TDMA) is optimal; it achieves any point on the boundary of the developed outer bound. This is interesting in practice since both OOK and TDMA have low complexity. At moderate SNR (typically [0; 8] dB), a discrete input distribution with a small alphabet size achieves a fairly good performance. © 2015 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/document/7414078en
dc.titleOn the Capacity of the 2-User IM-DD Optical Broadcast Channelen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journal2015 IEEE Globecom Workshops (GC Wkshps)en
dc.conference.date6 December 2015 through 10 December 2015en
dc.conference.nameIEEE Globecom Workshops, GC Wkshps 2015en
kaust.authorChaaban, Anasen
kaust.authorRezki, Zouheiren
kaust.authorAlouini, Mohamed-Slimen
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