Free Space Optics Transmission Performance Enhancement for Sustaining 5G High Capacity Data Services [PDF]
Micromachines, 2022 Enhanced bandwidth issues for 5G system are fruitfully resolved by organizing free space optics (FSO) communication frameworks. The high bandwidth, the maximum number of channel transmission requirements, and high data rate have been boosted during the ...
Mustafa Kamal +7 more
doaj +2 more sources
Improving free-space continuous variable quantum key distribution with adaptive optics [PDF]
Scientific ReportsA significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations.
Mikhael T. Sayat +8 more
doaj +2 more sources
The spatial complexity of optical computing: toward space-efficient design [PDF]
Nature CommunicationsSimilar to algorithms, which consume time and memory to run, hardware requires resources to function. For devices processing physical waves, implementing operations needs sufficient “space,” as dictated by wave physics.
Yandong Li, Francesco Monticone
doaj +2 more sources
Improvement of beam-tracker for sensor network with Free Space Optics
Measurement: Sensors, 2021 We study beam trackers using image processing. This function is used for sensor networks using movable optical space communication. However, the beam tracker did not extract the area of the beam normally, and it was often the case that the beam could not
Tomohiro Shinki, Naoki Kagawa
doaj +1 more source
Free Space Optics Communication for Ultra-High-Speed Train Running in Evacuated Tube
Applied Sciences, 2022 This paper develops a novel communication method for an ultra-high-speed train that runs in an evacuated tube. The proposed method significantly reduces the number of needed base stations to provide adequate coverage and data rates.
Hasan Abbas Al-Mohammed, Elias Yaacoub
doaj +1 more source
High Frequency MEMS Capacitive Mirror for Space Applications
Micromachines, 2023 Free space optics laser communication using modulating retroreflectors (MR) is a challenging application for an active mirror, due to the high frequencies (>100 kHz) required to enable sufficient data transfer.
Alvise Bagolini +5 more
doaj +1 more source
FatNet: High-Resolution Kernels for Classification Using Fully Convolutional Optical Neural Networks
AI, 2023 This paper describes the transformation of a traditional in silico classification network into an optical fully convolutional neural network with high-resolution feature maps and kernels.
Riad Ibadulla +2 more
doaj +1 more source
Performance of Cipher Image Transmission in Free Space Optics Under Foggy Weather
IEEE Access, 2023 This paper proposes a new cipher image transmission system in free space optics system (FSO). A secure and effective image cryptosystem algorithm based on the Choquet fuzzy integral (CFI) technique and the integer wavelet transform is utilized. Numerical
Somia A. Abd El-Mottaleb +6 more
doaj +1 more source
Journal of Physics Communications, 2023 Free space optical (FSO) wireless communication has emerged as a viable alternative to the existing fiber optics and radio frequency (RF) communications due to its ability to operate in unlicensed spectrum, offering huge data handling capacities and ...
Abdullah Nafis Khan +2 more
doaj +1 more source
A Survey of Free Space Optics (FSO) Communication Systems, Links, and Networks
IEEE Access, 2021 The next generation (NG) optical technologies will unveil certain unique features, namely ultra-high data rate, broadband multiple services, scalable bandwidth, and flexible communications for manifold end-users.
Samir Ahmed Al-Gailani +6 more
doaj +1 more source