Technology Presentation onTechnology Presentation on

White LED BroadbandWhite LED Broadband

Edwin Edwin “Doods”“Doods” Capili Capili

EcE 303 Research Seminar 3EcE 303 Research Seminar 3

December 22, 2007December 22, 2007

Technological InsightTechnological InsightWhite LED for room light & communication

<100MHz Transmission

Significance in the MarketSignificance in the Market

Economical: (1) Functions as room lighting Economical: (1) Functions as room lighting & wireless communication; (2) Low power & wireless communication; (2) Low power consumptionconsumption

Easy to install: Piggybacks on existing Easy to install: Piggybacks on existing room lighting systemroom lighting system

Security: Data signals cannot pass Security: Data signals cannot pass through wallsthrough walls

How to Adapt in the PhilippinesHow to Adapt in the Philippines

Technical issues: Technical issues: Design of uplinkDesign of uplink Negative effect of natural and artificial lightNegative effect of natural and artificial light Balance between lighting and communicationBalance between lighting and communication

Optical sensors may be more effective on certain light wavelengths Optical sensors may be more effective on certain light wavelengths that the human eyes may not react as effectivelythat the human eyes may not react as effectively

Would be useful after solving the “last mile” Would be useful after solving the “last mile” problemproblem delivering connectivity from provider to a customer in delivering connectivity from provider to a customer in

an economical way.an economical way.