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Performance Bounds of DPSK and OOK for Low Elevation Optical LEO Downlinks

Henniger, Hennes and Ludwig, Alexandra and Horwath, Joachim (2010) Performance Bounds of DPSK and OOK for Low Elevation Optical LEO Downlinks. Radioengineering (Vol. 1), pp. 589-595. Czech and Slovak Technical Universities. ISSN 1210-2512.

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Official URL: http://www.radioeng.cz/papers/2010-4.htm


Optical wireless LEO downlinks are seen as an emerging solution to increase available bandwidth to multigigabits per second. One of the biggest challenges is the impact of the atmosphere on the optical signal. The atmosphere causes time-varying link degradation due to index of refraction turbulence, especially at low elevation angles. Since the influence of the turbulence for low elevation downlinks is hardly investigated we perform numerical propagation simulations in order to achieve reliable received signal statistics. These results are further utilized to evaluate performance bounds of optical wireless systems from an information theory perspective. We focus on the two most common optical wireless systems, i.e. NRZ-DPSK and NRZ-OOK. This work shows that under low elevation angles acceptable quality of service can only be reached with high code rates.

Document Type:Article
Title:Performance Bounds of DPSK and OOK for Low Elevation Optical LEO Downlinks
AuthorsInstitution or Email of Authors
Henniger, HennesHennes.Henniger@dlr.de
Ludwig, Alexandraalexandra.ludwig@dlr.de
Horwath, Joachimjoachim.horwath@dlr.de
Date:4 December 2010
Journal or Publication Title:Radioengineering
Refereed publication:Yes
In Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 589-595
Raida, ZbynekDept. of Radio Electronics, Brno University of Technology
Maršálek, RomanBrno University of Technology, Czechia
Nekovee, MaziarBritish Telecom Research and University
Publisher:Czech and Slovak Technical Universities
Series Name:Radioengineering
Keywords:Free-space optical communications, channel capacity, index of refraction turbulence, fading, LEO downlink, system performance
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben Multimedia Satellitennetze (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > International Ground Segment
Institute of Communication and Navigation > Digital Networks
Deposited By: Joachim Horwath
Deposited On:12 Jan 2011 07:37
Last Modified:12 Dec 2013 21:12

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