Diversity combining in FSO systems in presence of non-Gaussian noise
Kamboj A, Mallik RK, Agrawal M, Schober R (2012)
Publication Type: Conference contribution
Publication year: 2012
Conference Proceedings Title: 2012 International Conference on Signal Processing and Communications, SPCOM 2012
Event location: Bangalore
ISBN: 9781467320122
DOI: 10.1109/SPCOM.2012.6290040
Abstract
Free-space optics (FSO) communication has received much attention in recent years as a cost-effective, license-free, and wide-bandwidth access technique for high data rate applications. The performance of FSO communication, however, severely suffers from turbulence caused by atmospheric conditions. Multiple photodetectors can be placed at the receiver to mitigate the turbulence and exploit the advantages of spatial diversity combining. In this paper, we analyze the bit error rate (BER) performance of an FSO communication system employing binary phase-shift keying with additive non-Gaussian noise over negative exponential distributed atmospheric turbulence and spatial diversity at the receiver. The Laplace distribution is used to model the non-Gaussian impulsive noise. We consider the case when perfect channel state information is available at the receiver for implementation of coherent detection. Analytical expressions for the BER of a single channel receiver as well as that of a diversity combining receiver using selection combining, dual-diversity equal-gain combining, and maximalratio combining are derived. The derived analytical expressions are verified by simulation results. © 2012 IEEE.
Authors with CRIS profile
Involved external institutions
Canada (CA)How to cite
APA:
Kamboj, A., Mallik, R.K., Agrawal, M., & Schober, R. (2012). Diversity combining in FSO systems in presence of non-Gaussian noise. In 2012 International Conference on Signal Processing and Communications, SPCOM 2012. Bangalore, IN.
MLA:
Kamboj, Anisha, et al. "Diversity combining in FSO systems in presence of non-Gaussian noise." Proceedings of the 2012 9th International Conference on Signal Processing and Communications, SPCOM 2012, Bangalore 2012.
BibTeX: Download