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Single-channel imaging receiver for optical wireless communications

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2 Author(s)
Castillo-Vazquez, M. ; Dept. of Commun. Eng., Malaga Univ., Spain ; Puerta-Notario, A.

A novel and simple single-channel imaging receiver for high-speed portable wireless infrared communications is proposed. The receiver is able to aim automatically at the ceiling areas with better signal-to-noise ratio. The self-orienting capability, together with the very narrow field of view employed, drastically reduces the path loss, background noise and multipath distortion. Moreover, its single-channel structure minimizes hardware complexity in contrast to conventional angle diversity receivers. Our simulation results indicate that the proposed receiver, operating in a multispot diffusing configuration, offers significant gains in power requirements and channel bandwidth compared to angle diversity receivers.

Published in:

Communications Letters, IEEE  (Volume:9 ,  Issue: 10 )