Constraints on drivers for visible light communications emitters based on energy efficiency
In this work we analyze the energy efficiency constraints on drivers for Visible light communication (VLC) emitters. This is the main reason why LED is becoming the main source of illumination. We study the effect of the waveform shape and the modulation techniques on the overall energy efficiency o...
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| Veröffentlicht in: | Optics express 2016-05, Vol.24 (9), p.9994-9999 |
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| container_title | Optics express |
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| creator | Del Campo-Jimenez, Guillermo Perez-Jimenez, Rafael Lopez-Hernandez, Francisco Jose |
| description | In this work we analyze the energy efficiency constraints on drivers for Visible light communication (VLC) emitters. This is the main reason why LED is becoming the main source of illumination. We study the effect of the waveform shape and the modulation techniques on the overall energy efficiency of an LED lamp. For a similar level of illumination, we calculate the emitter energy efficiency ratio η (P
/P
) for different signals. We compare switched and sinusoidal signals and analyze the effect of both OOK and OFDM modulation techniques depending on the power supply adjustment, level of illumination and signal amplitude distortion. Switched and OOK signals present higher energy efficiency behaviors (0.86≤η≤0.95) than sinusoidal and OFDM signals (0.53≤η≤0.79). |
| doi_str_mv | 10.1364/OE.24.009994 |
| format | Article |
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/P
) for different signals. We compare switched and sinusoidal signals and analyze the effect of both OOK and OFDM modulation techniques depending on the power supply adjustment, level of illumination and signal amplitude distortion. Switched and OOK signals present higher energy efficiency behaviors (0.86≤η≤0.95) than sinusoidal and OFDM signals (0.53≤η≤0.79).</description><identifier>ISSN: 1094-4087</identifier><identifier>EISSN: 1094-4087</identifier><identifier>DOI: 10.1364/OE.24.009994</identifier><identifier>PMID: 27137609</identifier><language>eng</language><publisher>United States</publisher><ispartof>Optics express, 2016-05, Vol.24 (9), p.9994-9999</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c329t-6590d9ae5d618a43a033af3ddb9a58248975ae1e437dd94e5ea2393aff2a3ac23</citedby><cites>FETCH-LOGICAL-c329t-6590d9ae5d618a43a033af3ddb9a58248975ae1e437dd94e5ea2393aff2a3ac23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,860,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27137609$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Del Campo-Jimenez, Guillermo</creatorcontrib><creatorcontrib>Perez-Jimenez, Rafael</creatorcontrib><creatorcontrib>Lopez-Hernandez, Francisco Jose</creatorcontrib><title>Constraints on drivers for visible light communications emitters based on energy efficiency</title><title>Optics express</title><addtitle>Opt Express</addtitle><description>In this work we analyze the energy efficiency constraints on drivers for Visible light communication (VLC) emitters. This is the main reason why LED is becoming the main source of illumination. We study the effect of the waveform shape and the modulation techniques on the overall energy efficiency of an LED lamp. For a similar level of illumination, we calculate the emitter energy efficiency ratio η (P
/P
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/P
) for different signals. We compare switched and sinusoidal signals and analyze the effect of both OOK and OFDM modulation techniques depending on the power supply adjustment, level of illumination and signal amplitude distortion. Switched and OOK signals present higher energy efficiency behaviors (0.86≤η≤0.95) than sinusoidal and OFDM signals (0.53≤η≤0.79).</abstract><cop>United States</cop><pmid>27137609</pmid><doi>10.1364/OE.24.009994</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| title | Constraints on drivers for visible light communications emitters based on energy efficiency |
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