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Reseach Article

Performance Comparison between OOK, PPM and PAM Modulation Schemes for Free Space Optical (FSO) Communication Systems: Analytical Study

by Taissir Youssef Elganimi
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 79 - Number 11
Year of Publication: 2013
Authors: Taissir Youssef Elganimi
10.5120/13786-1838

Taissir Youssef Elganimi . Performance Comparison between OOK, PPM and PAM Modulation Schemes for Free Space Optical (FSO) Communication Systems: Analytical Study. International Journal of Computer Applications. 79, 11 ( October 2013), 22-27. DOI=10.5120/13786-1838

@article{ 10.5120/13786-1838,
author = { Taissir Youssef Elganimi },
title = { Performance Comparison between OOK, PPM and PAM Modulation Schemes for Free Space Optical (FSO) Communication Systems: Analytical Study },
journal = { International Journal of Computer Applications },
issue_date = { October 2013 },
volume = { 79 },
number = { 11 },
month = { October },
year = { 2013 },
issn = { 0975-8887 },
pages = { 22-27 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume79/number11/13786-1838/ },
doi = { 10.5120/13786-1838 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:52:44.804776+05:30
%A Taissir Youssef Elganimi
%T Performance Comparison between OOK, PPM and PAM Modulation Schemes for Free Space Optical (FSO) Communication Systems: Analytical Study
%J International Journal of Computer Applications
%@ 0975-8887
%V 79
%N 11
%P 22-27
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

As wireless communication systems become ever-more important and pervasive parts of our everyday life; system capacity and quality of service issues are becoming more critical. In order to increase the system capacity and improve the quality of service, it is necessary that we pay closer attention to bandwidth and power efficiency issues. In this paper, the bandwidth and power efficiency issues in Free Space Optics (FSO) transmissions are addressed under Pulse Position Modulation (L-PPM) and Pulse Amplitude Modulation (M-PAM) schemes, and their performance in terms of power and bandwidth efficiencies and the Bit Error Rate (BER) versus Signal-to-Noise Ratio (SNR) are compared analytically. The comparative study of the L-PPM and M-PAM schemes is discussed, and showed that for similar SNR, L-PPM scheme offered improved performance. For FSO communication systems, although the power efficiency is inferior to L-PPM scheme, On-Off Keying (OOK) modulation scheme is more commonly used due to its efficient bandwidth usage, but M-PAM is the bandwidth efficient modulation scheme in this research for more than "2" bits of information can be sent, while L-PPM is the power efficient modulation scheme for more number of bits can be sent, and it may be able to improve performance by increasing the number of bits in L-PPM scheme.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Free Space Optics (FSO) On-Off Keying (OOK) Pulse Position Modulation (L-PPM) Pulse Amplitude Modulation (M-PAM).