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Comparison of Three Receiver Designs for Optical Wireless Communications using White LEDs

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3 Author(s)
Armstrong, J. ; Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, VIC, Australia ; Green, R.J. ; Higgins, M.D.

Three visible light optical wireless communication systems using asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) and white light emitting diodes (LEDs) are compared. The LEDs considered have a larger modulation bandwidth for the blue optical frequencies than for the rest of the transmitted optical spectrum. It is shown that for typical parameter values, a novel diversity combining receiver has slightly greater capacity than a system optimized for reception of blue light only, and that both have greater capacity than a system designed to receive the entire visible light spectrum.

Published in:

Communications Letters, IEEE  (Volume:16 ,  Issue: 5 )

Date of Publication:

May 2012

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