Results 21 to 30 of about 60,070 (308)
Digital Communications and Networks, 2015 Attracting increasing attention in recent years, the Free Space Optics (FSO) technology has been recognized as a cost-effective wireless access technology for multi-Gigabit rate wireless networks.
Hui Zhou, Shiwen Mao, Prathima Agrawal
doaj +1 more source
A survey of free space optical networks
Digital Communications and Networks, 2017 Free Space Optical (FSO) networks, also known as optical wireless networks, have emerged as viable candidates for broadband wireless communications in the near future. The range of the potential application of FSO networks is extensive, from home to satellite.
In Keun Son, Shiwen Mao
openaire +2 more sources
Free Space Optics: Current Applications and Future Challenges
International Journal of Optics, 2015 FSO is a communication system where free space acts as medium between transceivers and they should be in LOS for successful transmission of optical signal. Medium can be air, outer space, or vacuum.
Aditi Malik, Preeti Singh
doaj +1 more source
Adaptive free space optic system based on visibility detector to overcome atmospheric attenuation
Results in Physics, 2019 Free space optics (FSO) provides high data rate by allowing transmission of signal through atmosphere. FSO is affected by different weather conditions. The atmospheric attenuation is caused by two main factors; absorption and scattering.
Muhammad K. El-Nayal +3 more
doaj +1 more source
Terrestrial Free-Space Optical Communications [PDF]
, 2010 Book abstract: Mobile and wireless communications applications have a clear impact on improving the humanity wellbeing. From cell phones to wireless internet to home and office devices, most of the applications are converted from wired into wireless communication.
Ghassemlooy, Zabih, Popoola, Wasiu O.
openaire +2 more sources
Relay-assisted free-space optical communication [PDF]
IEEE Transactions on Wireless Communications, 2007 In this paper, we present relay-assisted transmission as a powerful fading mitigation tool for free-space optical systems operating in atmospheric turbulence channels. We study both serial (i.e., multi-hop transmission) and parallel (i.e., cooperative diversity) relaying encoupled with amplify-and-forward and decode-and-forward modes.
Majid Safari, Murat Uysal
openaire +1 more source
Analysis and evaluation of optimum wavelengths for free-space optical transceivers [PDF]
, 2010 The objective of this paper is to analyse and present the latest results obtained for free-space optics (FSO) within the EU COST Action IC-0802 and within the European Space Agency (ESA) contract.
Z. Ghassemlooy +15 more
core +1 more source
Performance Analysis of a Free Space Optics Link with Multiple Transmitters/Receivers
International Islamic University Malaysia Engineering Journal, 2012 : Multiple transmitters/receivers (TX/RX) are used to improve the quality of Free Space Optics (FSO) communication systems. With the current needs of this technology for longer distance communication, the qualitative analysis of the system has become ...
Nur Haedzerin Md Noor +2 more
doaj +1 more source
Free-space-coupled wavelength-scale disk resonators
Nanophotonics, 2022 Optical microresonators with low quality factor (Q$Q$) can be efficiently excited by and scatter freely propagating optical waves, but those with high Q$Q$ typically cannot.
Mirzapourbeinekalaye Babak +4 more
doaj +1 more source
On the Capacity of Free-Space Optical Intensity Channels [PDF]
IEEE Transactions on Information Theory, 2008 New upper and lower bounds are presented on the capacity of the free-space optical intensity channel. This channel is characterized by inputs that are nonnegative (representing the transmitted optical intensity) and by outputs that are corrupted by additive white Gaussian noise (because in free space the disturbances arise from many independent sources)
Amos Lapidoth +2 more
openaire +4 more sources