Performance evaluation of free space optical link using OOK modulation schemes under dust-storm turbulence

Mohamed Rasied, Thaahirah Shireen and Hani Zailani, Nur Fazeera and Mohamad Sepian, Filzah Syafirah and almeslati, Muhamed and Habaebi, Mohamed Hadi and Basahel, Ahmed (2021) Performance evaluation of free space optical link using OOK modulation schemes under dust-storm turbulence. In: 2021 8th International Conference on Computer Communication Engineering (ICCCE), 22-23 June 2021, Kuala Lumpur, Malaysia.

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Abstract

Nowadays, free space optics (FSO) technology is one of the emerging technologies utilized as a complementary over radio frequency wireless technology with limited spectrum bandwidth to meet the high bandwidth demand. FSO technology fulfills the demands for massive bandwidth, faster data rate and low installation and maintenance cost. However, FSO transmission links for outdoor networks are vulnerable to atmospheric turbulence specifically in harsh weather conditions in which it deteriorates the performance of FSO systems. In this paper, a critical study on the performance of the FSO links in different dust storm conditions is presented. We aim to analyze the performance factors such as transmitted power control and link length that contribute to increase in signal-to-noise (SNR) ratio and bit-error-rate (BER) for On- Off Keying (OOK) modulation scheme. The results indicate that under low visibility, shorter link length performs better while increase in transmitted power contributes to small improvements. In contrast, at higher visibility, power control makes significant difference. A “9dbm” power increase over 1km link contributes 400m visibility improvement for OOK modulation. However, these visibility improvements will degrade proportionally as the link length is reduced.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	6727/90594
Uncontrolled Keywords:	FSO, dust storm, visibility, optical wireless communication, bit error rate (BER), on-off keying (OOK)
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Dr. Mohamed Hadi Habaebi
Date Deposited:	19 Jul 2021 17:16
Last Modified:	17 Sep 2021 15:48
URI:	http://irep.iium.edu.my/id/eprint/90594

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