A novel power and offset allocation method for spatial multiplexing MIMO Systems in optical wireless channels

Handle URI:
http://hdl.handle.net/10754/564466
Title:
A novel power and offset allocation method for spatial multiplexing MIMO Systems in optical wireless channels
Authors:
Park, Kihong ( 0000-0002-6867-4277 ) ; Ko, Youngchai; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
We consider optical wireless communication which can be utilized for illumination and communication by relying on lighting devices. Due to the limited bandwidth of optical sources, it is challenging to achieve high data rate in optical wireless systems. In order to obtain a multiplexing gain and high spectral efficiency, we design an optical multi-input multi-output (MIMO) system utilizing a singular value decomposition-based spatial multiplexing and adaptive modulation. We note that the conventional allocation method in radio frequency MIMO channels cannot be applied directly to the optical intensity channels. In this paper, we generalize the result of power allocation method in [1] for arbitrary number of transmit and receive antennas in optical wireless MIMO systems. Based on three constraints, namely, the nonnegativity, the aggregate optical power, and the bit error rate requirement, we propose a novel method to allocate the optical power, the offset value, and the modulation size for maximum sum rate. From some selected simulation results, we show that our proposed allocation method gives a better spectral efficiency than the method that allocates the optical power equally for each data stream. © 2011 IEEE.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2011 IEEE GLOBECOM Workshops (GC Wkshps)
Conference/Event name:
2011 IEEE GLOBECOM Workshops, GC Wkshps 2011
Issue Date:
Dec-2011
DOI:
10.1109/GLOCOMW.2011.6162569
Type:
Conference Paper
ISBN:
9781467300407
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPark, Kihongen
dc.contributor.authorKo, Youngchaien
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:01:43Zen
dc.date.available2015-08-04T07:01:43Zen
dc.date.issued2011-12en
dc.identifier.isbn9781467300407en
dc.identifier.doi10.1109/GLOCOMW.2011.6162569en
dc.identifier.urihttp://hdl.handle.net/10754/564466en
dc.description.abstractWe consider optical wireless communication which can be utilized for illumination and communication by relying on lighting devices. Due to the limited bandwidth of optical sources, it is challenging to achieve high data rate in optical wireless systems. In order to obtain a multiplexing gain and high spectral efficiency, we design an optical multi-input multi-output (MIMO) system utilizing a singular value decomposition-based spatial multiplexing and adaptive modulation. We note that the conventional allocation method in radio frequency MIMO channels cannot be applied directly to the optical intensity channels. In this paper, we generalize the result of power allocation method in [1] for arbitrary number of transmit and receive antennas in optical wireless MIMO systems. Based on three constraints, namely, the nonnegativity, the aggregate optical power, and the bit error rate requirement, we propose a novel method to allocate the optical power, the offset value, and the modulation size for maximum sum rate. From some selected simulation results, we show that our proposed allocation method gives a better spectral efficiency than the method that allocates the optical power equally for each data stream. © 2011 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleA novel power and offset allocation method for spatial multiplexing MIMO Systems in optical wireless channelsen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2011 IEEE GLOBECOM Workshops (GC Wkshps)en
dc.conference.date5 December 2011 through 9 December 2011en
dc.conference.name2011 IEEE GLOBECOM Workshops, GC Wkshps 2011en
dc.conference.locationHouston, TXen
dc.contributor.institutionSchool of Electrical Engineering, Korea University, Seoul, South Koreaen
kaust.authorPark, Kihongen
kaust.authorAlouini, Mohamed-Slimen
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