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Comparison of Bit Error Rate Performance of Different Modulation Techniques over Turbulent FSO Link

by Harjeevan Singh, Mohit Arora
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 109 - Number 12
Year of Publication: 2015
Authors: Harjeevan Singh, Mohit Arora
10.5120/19241-0973

Harjeevan Singh, Mohit Arora . Comparison of Bit Error Rate Performance of Different Modulation Techniques over Turbulent FSO Link. International Journal of Computer Applications. 109, 12 ( January 2015), 20-24. DOI=10.5120/19241-0973

@article{ 10.5120/19241-0973,
author = { Harjeevan Singh, Mohit Arora },
title = { Comparison of Bit Error Rate Performance of Different Modulation Techniques over Turbulent FSO Link },
journal = { International Journal of Computer Applications },
issue_date = { January 2015 },
volume = { 109 },
number = { 12 },
month = { January },
year = { 2015 },
issn = { 0975-8887 },
pages = { 20-24 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume109/number12/19241-0973/ },
doi = { 10.5120/19241-0973 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:44:37.353027+05:30
%A Harjeevan Singh
%A Mohit Arora
%T Comparison of Bit Error Rate Performance of Different Modulation Techniques over Turbulent FSO Link
%J International Journal of Computer Applications
%@ 0975-8887
%V 109
%N 12
%P 20-24
%D 2015
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Free space optical (FSO) communication link is a line of sight (LOS) wireless link between the nodes separated by an unguided medium such that visible and infrared bands of the spectrum are used as data carrier. Recent past has witnessed huge revival of research interest in this field so as to make FSO commercially viable and looking into this prospective, data modulation techniques are one of the primary ways to enhance link sustainability. In this paper, comparison of modulation techniques like M-ary QAM, BPSK and DPSK has been studied by creating turbulent atmospheric conditions using gamma-gamma turbulence model. During this link analysis, BPSK performed far better in comparison to DPSK and M-ary QAM in terms of BER for similar SNR values and interestingly, higher the order of M-QAM and higher the link range, greater was the degradation of link performance observed.

References
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Index Terms

Computer Science
Information Sciences

Keywords

FSO BER M-QAM BPSK DPSK Gamma Gamma model Link Range.