The Impact of Turbulence on MANET FSO Networks Using NS-3
The Impact of Turbulence on MANET FSO Networks Using NS-3作者机构：Faculty of Sciences and Technologies Sidi Mohamed Ben Abdellah University Fes Morocco School of Science and Engineering Al Akhawayn University Ifrane Morocco Information Technology Islamic University of Medina Saudi Arabia Medina Kingdom of Saudi Arabia
出 版 物：《Journal of Computer and Communications》 (电脑和通信（英文）)
年 卷 期：2022年第10卷第10期
页 面：162-171页
学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学]
主 题：MANET FSO Turbulence Exponentiated Weibull BER Packet Delivery Ratio NS-3
摘 要：In this paper, the impact of atmospheric turbulence is investigated and analyzed for the Free Space Optical Mobile Ad Hoc Networks (FSO MANET) using the Network Simulator NS-3. The FSO channel random intensity fluctuations have been modeled using the Exponentiated Weibull (EW) distribution. Further, the FSO module has been implemented and integrated with NS3 using the FSO propagation model and the FSO error models. The computation of the key performance indicators (KPI) mainly the throughput and the packet delivery ratio (PDR) shows that the network density affects the network performance. Its effect was illustrated for the different turbulence regimes, strong and weak. It is found that the throughput and PDR values decrease as the number of mobile nodes becomes larger. For instance, at 150 kbps and in the presence of strong turbulence with 25, 50, and 75 nodes, the PDRs are 77%, 76%, and 73% respectively. Moreover, the throughput and PDR values in the strong turbulence regime are lower than those in the weak turbulence regime for the same date rate. The throughput in the strong turbulence regime with 75 mobile nodes at the data rate 150 kbps is 2100 kbps while it is 2300 kbps in the weak turbulence mode at the same rate.
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