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Conference Paper: Optical wireless based on high brightness visible LEDs

TitleOptical wireless based on high brightness visible LEDs
Authors
KeywordsEngineering
Electrical engineering
Issue Date1999
PublisherIEEE.
Citation
Conference Record - Ias Annual Meeting (Ieee Industry Applications Society), 1999, v. 3, p. 1693-1699 How to Cite?
AbstractThis paper is on a novel use of lighting or signaling devices constructed by light-emitting diodes (LEDs). The idea is on their concurrent use for simultaneous signaling and communications. The visible light from LEDs can be modulated and encoded with audio or data signal. Hence, an LED indicator lamp or traffic light can become an information broadcasting device. Such a system made up of high brightness visible LEDs can provide the function of open space, wireless broadcasting of audio or data signal. An implemented system with experimental results is shown. A portable receiver is designed to demodulate the optically transmitted information. The distance for audio transmission of an LED traffic light can reach over 20m. The optical link employs intensity modulation with direct detection. The system is limited to line-of-sight communications. However, this concurrent use of LEDs will open up many new applications.
Persistent Identifierhttp://hdl.handle.net/10722/46162
ISSN

 

DC FieldValueLanguage
dc.contributor.authorPang, Granthamen_HK
dc.contributor.authorKwan, Thomasen_HK
dc.contributor.authorLiu, Hughen_HK
dc.contributor.authorChan, ChiHoen_HK
dc.date.accessioned2007-10-30T06:43:50Z-
dc.date.available2007-10-30T06:43:50Z-
dc.date.issued1999en_HK
dc.identifier.citationConference Record - Ias Annual Meeting (Ieee Industry Applications Society), 1999, v. 3, p. 1693-1699en_HK
dc.identifier.issn0197-2618en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46162-
dc.description.abstractThis paper is on a novel use of lighting or signaling devices constructed by light-emitting diodes (LEDs). The idea is on their concurrent use for simultaneous signaling and communications. The visible light from LEDs can be modulated and encoded with audio or data signal. Hence, an LED indicator lamp or traffic light can become an information broadcasting device. Such a system made up of high brightness visible LEDs can provide the function of open space, wireless broadcasting of audio or data signal. An implemented system with experimental results is shown. A portable receiver is designed to demodulate the optically transmitted information. The distance for audio transmission of an LED traffic light can reach over 20m. The optical link employs intensity modulation with direct detection. The system is limited to line-of-sight communications. However, this concurrent use of LEDs will open up many new applications.en_HK
dc.format.extent710260 bytes-
dc.format.extent4651 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofConference Record - IAS Annual Meeting (IEEE Industry Applications Society)en_HK
dc.rights©1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectEngineeringen_HK
dc.subjectElectrical engineeringen_HK
dc.titleOptical wireless based on high brightness visible LEDsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0197-2618&volume=3&spage=1693&epage=1699&date=1999&atitle=Optical+Wireless+based+on+High+brightness+Visible+LEDsen_HK
dc.identifier.emailPang, Grantham:gpang@eee.hku.hken_HK
dc.identifier.authorityPang, Grantham=rp00162en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/IAS.1999.805968en_HK
dc.identifier.scopuseid_2-s2.0-0033309436en_HK
dc.identifier.hkuros50483-
dc.identifier.volume3en_HK
dc.identifier.spage1693en_HK
dc.identifier.epage1699en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridPang, Grantham=7103393283en_HK
dc.identifier.scopusauthoridKwan, Thomas=36942447300en_HK
dc.identifier.scopusauthoridLiu, Hugh=7409749513en_HK
dc.identifier.scopusauthoridChan, ChiHo=7404813577en_HK

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