Title :
Outage Performance and DMT Analysis of DF Parallel Relaying in FSO IM/DD Communications
Author :
Aghajanzadeh, Sahar Molla ; Uysal, Murat
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
In this paper, we investigate the performance of cooperative diversity transmission in free-space optical (FSO) communications. We consider an FSO cooperative diversity system with a single decode-and-forward relay and a line-of sight link between the source and the destination. Focusing on high signal-to-noise ratio (SNR) regime, we develop performance characterizations in terms of outage probability, outage diversity and coding gains, and diversity-multiplexing tradeoff (DMT). Our results demonstrate that cooperative diversity improves the performance of FSO communications by bringing diversity advantages.
Keywords :
cooperative communication; decode and forward communication; diversity reception; multiplexing; optical links; probability; DMT analysis; FSO IM/DD communications; coding gains; cooperative diversity transmission; decode-and-forward parallel relaying; diversity multiplexing tradeoff; free space optical communications; line-of sight link; outage diversity; outage performance; outage probability; signal-to-noise ratio; Approximation methods; Diversity methods; Encoding; Fading; Multiplexing; Relays; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6399336
