Title :
Single-channel imaging receiver for optical wireless communications
Author :
Castillo-Vazquez, M. ; Puerta-Notario, A.
Author_Institution :
Dept. of Commun. Eng., Malaga Univ., Spain
Abstract :
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.
Keywords :
image sensors; mobile communication; multipath channels; optical distortion; optical noise; optical receivers; background noise; channel bandwidth; high-speed portable infrared communication; multipath distortion; multispot diffusing configuration; optical receiver; optical wireless communication; power requirement; single-channel imaging receiver; wireless LAN; Background noise; Hardware; High speed optical techniques; Optical distortion; Optical fiber communication; Optical imaging; Optical losses; Optical receivers; Signal to noise ratio; Wireless communication;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.10021
