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Title: Wireless optical communications for intra-spacecraft networks based on OCDMA with random optical codes
Authors: Poves, Enrique
Campo Jiménez, Guillermo del
López Hernández, Francisco José
Martín-González, Jesús Ángel
González, Oswaldo
Rufo, Julio
Pérez Jiménez, Rafael
Keywords: Optical transmitters;Actuators;Field programmable gate arrays;Sensors;Phase locked loops;Optical receivers;Wireless communication
Issue Date: Jul-2012
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Citation: IEEE Aerospace and Electronic Systems Magazine, 2012, 27 (5), 36-41
Abstract: In recent years, spacial agencies have shown a growing interest in optical wireless as an alternative to wired and radio-frequency communications [1,2]. The use of these techniques for intra-spacecraft communications reduces the effect of take-off acceleration and vibrations on the systems by avoiding the need for rugged connectors and provides a significant mass reduction. Diffuse transmission also eases the design process as terminals can be placed almost anywhere without a tight planification to ensure the proper system behaviour. Previous studies [3,4] have compared the performance of radio-frequency and infrared optical communications. In an intra-satellite environment optical techniques help reduce EMI related problems, and their main disadvantages - multipath dispersion and the need for line-of-sight - can be neglected due to the reduced cavity size. Channel studies [5] demonstrate that the effect of the channel can be neglected in small environments if data bandwidth is lower than some hundreds of MHz.
ISSN: 0885-8985
DOI: 10.1109/MAES.2012.6226693
Type: Article
Appears in Collections:Otros trabajos de campo y actividades científicas

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