| RESEARCH |
Power-efficient Visible Light
Communication using Future-generation Solid-State
Lighting Systems
Pavan Nyama, Tufts Summer Scholar 2008
Undergraduate Student Researcher
PROJECT GOALS: The primary goal of this project
is to design and construct a LED driver circuit that can
accomplish both illumination control and high-speed data
transfer.Solid State Lighting (SSL) is geared to be
the key sustainable energy technology for lighting
systems in the future. The Department of Energy has
already made significant progress in research involving
the improvement of LED efficiency, with plans to create
LEDs that yield 160 lumens/Watt by 2025, which
correlates to an efficiency of 1600% compared to
incandescent lighting , although early prototypes have
already reached these levels. In addition to the many
benefits of using LEDs as lighting solutions, the use of
SSL also has the advantage of being digitally controlled
to a level unprecedented in current lighting
technologies. This, coupled with the fast response time
of LEDs opens numerous opportunities in the field of
optical wireless communication. Optical wireless
communication would allow simultaneous data transmission
and room illumination. In this project we will use
optical simulation software to model the indoor
propagation of typical LED lighting configurations and
build a visible light communication demonstrator
consisting of LED driver, WLED source array, optical
receiver electronic system, and optics to form an
experimental link.

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Lab Location:
Tufts Advanced
Technology Lab
200 Boston Ave.
Suite 2700
Medford, MA
02155 |