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Title: FSO Link Performance Analysis with Different Modulation Techniques under Atmospheric Turbulence
Authors: Sahu, Manish
Kiran, Kappala Vinod
Das, Santos Kumar
Keywords: Free space optics (FSO)
Atmospheric turbulence
Gamma-gamma distribution
Bit error rate (BER)
Meijer’s G function
Issue Date: Mar-2018
Citation: 2nd International Conference on Electronics, Communication and Aerospace Technology (ICECA 2018), Coimbatore, Tamil Nadu, India, 29 - 31 March, 2018.
Abstract: Free space optics (FSO) has achieved prominence in extremely large bandwidth, unlicensed spectrum and low power secure transmission in the field of wireless communication. Despite the advantages, it is deeply impacted due to atmospheric turbulence and fog weather conditions. This paper considers different modulation schemes under the presence of atmospheric turbulence and fog conditions. The desired expression of bit error rate (BER) is obtained by modeling the turbulence as gamma-gamma distributed channel and under this channel condition, 16-PPM has provided better performance than other schemes. BER is considered for the channel performance evaluation. This analysis can help to adopt a modulation technique according to the channel condition.
Description: Copyright of this document belongs to proceedings publisher.
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