Analytical Time-Domain Model for Radio over Free Space Optical (RoFSO) Systems Considering the Scintillation Effect

Author

Lim, Wansu ; Cho, Tae-Sik ; Yun, Changho ; Kourtessis, Pandelis ; Kim, Kiseon ; Yang, Yeon-mo

Author_Institution

Sch. of Eng. & Technol., Univ. of Hertfordshire, Hatfield, UK

Volume

48

Issue

2

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

1759

Lastpage

1763

Abstract

An analytical time-domain model is presented to analyze a radio over free space optical (RoFSO) system considering the scintillation effect with a log-normal distribution. This analytical model uses a dual-drive Mach-Zehnder modulator (DD-MZM) and photodetector (PD) for typical optical double sideband (ODSB) and single sideband (OSSB) signals. We show the output current of PD as a function of the summation of each frequency component in time domain. Finally, we calculate the received signal power with respect to the power spectral density (PSD) and derive a closed-form average bit error rate (BER) performance.

Keywords

error statistics; log normal distribution; modulators; photodetectors; radio-over-fibre; scintillation; BER performance; DD-MZM; ODSB; OSSB; RoFSO systems; analytical time-domain model; closed-form average bit error rate; dual-drive Mach-Zehnder modulator; log-normal distribution; optical double sideband; photodetector; power spectral density; radio over free space optical; scintillation effect; single sideband signals; Amplitude modulation; Bit error rate; Optical fiber communication; Optical modulation; Radio frequency; Time domain analysis;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2012.6178095

Filename

6178095