Results 101 to 110 of about 7,278,007 (215)

Frequency dissemination with free-space optical links [PDF]

, 2010
Optical clock technology is very certain to be integrated in the next high precision time standards. The demand for higher accuracy in time synchronization makes the use of free-space optical links necessary for frequency dissemination, especially if ...
Mata Calvo, Ramon, Giggenbach, Dirk, Moll, Florian   +2 more
core  

Joint Divergence Angle of Free Space Optics (FSO) Link and UAV Trajectory Design in FSO-Based UAV-Enabled Wireless Power Transfer Relay Systems

Photonics
Free Space Optics (FSO)-based UAV-enabled wireless power transfer (WPT) relay systems have emerged as a key technology for 6G networks, efficiently providing continuous power to Internet of Things (IoT) devices even in remote areas such as disaster ...
Jinho Kang
doaj   +1 more source

Review on Free Space Optics

, 2013
Present era demands high bandwidth with high data rates especially for internet. For high data rates requires high speed transmission medium like optical fiber.
Er. Abhishek Sharma, Er. Rajeev Thakur, Er. Sukhbir Singh   +2 more
core   +1 more source

Evaluation of optical code division multiple access (OCDMA) encoding techniques for free space optics (FSO) [PDF]

, 2016
Free space optics (FSO) was found to have numerous applications in next generation networks, whilst optical code division multiple access (OCDMA) can be used to provide many facilities and its implementation in FSO environment has attracted several ...
Ahmad Anas, Siti Barirah, Moghaddasi, Majid, Muhammad Noor, Ahmad Shukri, Hitam, Salasiah, Mamdoohi, Ghazaleh   +4 more
core   +1 more source

Experimental Demonstration of OAF Fiber-FSO Relaying for 60 GBd Transmission in Urban Environment

Photonics
We present an experimental demonstration of a daylight-capable Optical Amplify-and-Forward (OAF) relaying system designed to support flexible and high-capacity network topologies.
Evrydiki Kyriazi, Panagiotis Toumasis, Panagiotis Kourelias, Argiris Ntanos, Aristeidis Stathis, Dimitris Apostolopoulos, Nikolaos Lyras, Hercules Avramopoulos, Giannis Giannoulis   +8 more
doaj   +1 more source

Performance of channel coding on free space optical (FSO) communication link

, 2020
The average loss power and the channel fading are among the major challenges of the free-space optical (FSO) communications through the turbulent atmosphere, resulting in the bit-error-rate (BER) performance degradation, or even communication link outage. For the same average received optical signal power, the degradation in BER performance is strongly
openaire   +1 more source

Hybrid WDM/multibeam free-space optics for multigigabit access network

, 2015
Hybrid wavelength division multiplexing/multibeam free-space optics (FSO) is a promising technique to overcome atmospheric attenuation due to tropical rain and to fulfill the growing demand for increased communication bandwidth and scalability.
Sheikh, Usman Ullah, Elmagzoub, Mohamed A., Al-Gailani, Samir A., Mohammad, Abu Bakar, Shaddad, Redhwan Qasem   +4 more
core   +1 more source

Current optical technologies for wireless access [PDF]

, 2009
The objective of this paper is to describe recent activities and investigations on free-space optics (FSO) or optical wireless and the excellent results achieved within SatNEx an EU-framework 6th programme and IC 0802 a COST action.
Sheikh Muhammed, S., Ghassemlooy, Zabih, Javornik, Tomaz, Kandus, Gorazd, Awan, Muhammad, Brandl, P., Capsoni, Carlo, Leitgeb, Erich, Nebuloni, R.   +8 more
core