Spectrally Efficient Transmitter Diversity Scheme for Optical Satellite Feeder Links Employing Multiple Signal Sidebands
Conference: Photonische Netze - 18. ITG-Fachtagung
05/11/2017 - 05/12/2017 at Leipzig, Deutschland
Proceedings: Photonische Netze
Pages: 4Language: englishTyp: PDF
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Authors:
Mustafa, Ahmad; Giggenbach, Dirk; Poliak, Juraj (Institute of Communications and Navigation, German Aerospace Center, 82234 Wessling, Germany)
Brink, Stephan ten (Institute of Telecommunications, University of Stuttgart, Pfaffenwaldring 47, 70569 Germany)
Abstract:
Optical links between ground stations and geostationary orbit (GEO) satellites suffer from the atmospherically induced phase piston and intensity fluctuations. This aggravates stable signal detection in the uplink scenario. In this work transmitter diversity is studied as a fading mitigation technique in GEO satellite feeder uplinks. A single sideband scheme is used as a spectrally efficient frequency division technique compatible with intensity modulation and direct detection. A spectral efficiency of 0.56 bit/s/Hz with twofold diversity gaining 2.3 dB at BER = 10-3 was obtained by simulation.