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Document 15-09-0681-01-0007 VLC Call for Contributions -
Link Budget Reference Signal and Noise Spectral Distributions.doc has been
uploaded and is summarized below. Please consult the document itself for
more detail. Regards, Rick Roberts Technical Editor, IEEE802.15.7 Call for Contribution – Link Budget Signal and Noise Spectral
Distributions RELEASE DATE: September, 2009 SUBMITTAL DUE DATE: Opening Session of 802.15.7, November 2009 meeting At the September 2009 IEEE802.15.7 meeting
an ad-hoc group met to discuss VLC link budget issues. Arising from this
meeting was the identification of two primary issues: 1. We lack typical radiometer
descriptions of LED flux spectral distributions (watts/Hz) 2. We lack detailed information
about the noise density spectral distribution (watts/Hz), referenced to the
modulation domain, as measured in various environments. In
this Call for Contributions, IEEE802.15.7 is soliciting contributions that
provide LED radiant flux spectral distributions that can be used for link
budget evaluation of proposals. Also, IEEE802.15.7 is soliciting
contributions that provide modulation domain noise density spectral
distributions, which can be used for link budget evaluation of proposals,
taking into consideration background noise, photodetector noise and TIA
(transimpedance amplifier) noise. |