Implementation of Shared Laser–LED Sources in a Free Space Optics (FSO) Network under Environmental Impact

Author:

Hassan Abu Sufian Abdallah1,Ahmed Hassan Yousif2,Fadhil Hilal A.3ORCID,Zeghid Medien24ORCID,Chehri Abdellah5ORCID,Abd El-Mottaleb Somia A.6ORCID

Affiliation:

1. Department of Mathematics, College of Arts and Science, Prince Sattam Bin Abdulaziz University, Al-Kharj 11991, Saudi Arabia

2. Department of Electrical Engineering, College of Engineering in Wadi Alddawasir, Prince Sattam Bin Abdulaziz University, Wadi Alddawasir 11991, Saudi Arabia

3. Faculty of Engineering, Department of Electrical and Computer Engineering, Sohar University, Sohar 311, Oman

4. Electronics and Micro-Electronics Laboratory (E.μ.E.L), Faculty of Sciences, University of Monastir, Monastir 5000, Tunisia

5. Department of Mathematics and Computer Science, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada

6. Department of Mechatronics Engineering, Alexandria Higher Institute of Engineering and Technology, Alexandria 21311, Egypt

Abstract

This paper is devoted to evaluating the combined coherent and incoherent sources (CCIS) technique for different applications in the optical domain and future optical code division multiple access (OCDMA) networks. Spectral amplitude coding (SAC) has gained significant attention in optical processing systems due to its increased capabilities in dealing with multiple-access interference (MAI) efficiently. Fixed right shift (FRS) is adopted as a signature code in this study. Furthermore, performance analysis is studied in terms of bit error rate (BER) for the system using CCIS in both the free space optics (FSO) and sky mesh network using an aerial altitude platform system (AAPS). Simulation results confirmed that a CCIS design significantly improves system performance with moderate cost. An acceptable BER value of 10−9 at 1.25 Gbps data rate and 60 km, 38 km, and 6 km distances for the laser, CCIS, and LED sources, respectively, can be supported. In particular, at Q-factor ~4.5, the FSO ranges under low haze, moderate haze, and heavy haze are, respectively, 3.7 km, 2.5 km, and 1.5 km. The reason is that a CCIS design causes an increase in the effective transmitted power. It can be summarized that a CCIS design can provide reliable solutions and an affordable cost for future optical fiber and wireless network applications.

Funder

Deputyship for Research and Innovation, Ministry of Education in Saudi Arabia

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering

Reference26 articles.

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