In-Field Demonstration of OFDM-Over-FSO

Author

Mostafa, Ayman ; Hranilovic, Steve

Author_Institution

Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, ON, Canada

Volume

24

Issue

8

fYear

2012

fDate

4/15/2012 12:00:00 AM

Firstpage

709

Lastpage

711

Abstract

This letter reports the first in-field experiment of orthogonal frequency-division multiplexing (OFDM) over free-space optical channels at a rate of 300 Mb/s over a range of 1.87 km. Using customized commercial terminals, 20 OFDM channels with 2000 subcarriers each are transmitted with a 60-mW optical power in both clear and light-rain conditions. The received signals are digitized at 2 GSa/s and investigated on the symbol level. The experimental bit-error rates per channel and constellation diagrams are reported. Uncoded transmission has an average symbol-error rate on the order of 10 and 10 in clear conditions.

Keywords

OFDM modulation; error statistics; optical links; telecommunication channels; FSO channels; OFDM channels; bit rate 300 Mbit/s; bit-error rates; distance 1.87 km; free-space optics; orthogonal frequency-division multiplexing; power 60 mW; symbol-error rate; uncoded transmission; Meteorology; OFDM; Optical fiber networks; Optical fibers; Optical receivers; Optical transmitters; Experimental demonstration; free-space optical communications; orthogonal frequency-division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2187279

Filename

6148259