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Title: Design considerations of conventional angle diversity receivers for indoor optical wireless communications
Authors: Rodriguez Perez, Silvestre
Rodriguez Mendoza, Beatriz
Perez Jimenez, Rafael 
Gonzalez Hernandez, Oswaldo
Garcia-Viera Fernandez, Alberto
Keywords: Impulse-Response
Issue Date: 2013
Publisher: 1687-1499
Journal: Eurasip Journal on Wireless Communications and Networking 
Abstract: A conventional angle diversity receiver uses multiple receiving elements that are oriented in different directions, where each element employs its own filter and nonimaging concentrator, such as a compound parabolic concentrator (CPC) or hemispheric lens. In this paper, a study of the design of a conventional receiver structure using angle diversity that offers improved performance with respect to the infrared channel characteristics is presented. To this end, a recently proposed model for the effective signal collection area of a conventional angle diversity receiver that more closely approximates real behaviour than the ideal model is used. The inclusion of this model in a Monte Carlo ray-tracing algorithm allows us to investigate the effects of conventional receiver parameters on the main infrared channel parameters, such as path loss and rms delay spread. Furthermore, in order to determine the number of receiver elements, the outage probability and the average error probability are also considered. Based on the results, a conventional angle diversity receiver composed of seven elements is proposed, with one of them oriented towards the ceiling, and six angled at a 56A degrees elevation with a 60A degrees separation in azimuth. For each element, a CPC with a 50A degrees field of view must be used.
ISSN: 1687-1499
DOI: 10.1186/1687-1499-2013-221
Source: Eurasip Journal On Wireless Communications And Networking[ISSN 1687-1499]
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