نتایج جستجو برای: FSO

تعداد نتایج: 939  

2018
Ahmed Basahel Md. Rafiqul Islam Mohamed Habaebi Suriza Ahmad

Received Jan 11, 2018 Revised Mar 8, 2018 Accepted Mar 22, 2018 Free-space optical (FSO) links provide high speed point-to-point wireless communication, but its availability can easily be affected by weather conditions. In heavy rainfall regions, FSO links are relatively sensitive to rain. Availability prediction of FSO is indispensable part, especially in tropical areas. In this paper, methods...

2012
Gaurav Soni Jagjit Singh Malhotra

Free space optical communication system (FSO) is a potential solution for increasing bandwidth demands. The FSO has a capability to provide high speed data communication, economic and quick deployable. With recent advances and interest in Free Space Optics (FSO) for commercial deployments, a proper understanding of optical signal propagation in different atmospheric conditions has become essent...

Merging the adaptive networks with the free space optical (FSO) communication technology is a very interesting field of research because by adding the benefits of this technology, the adaptive networks become more efficient, cheap and secure. This is due to the fact that FSO communication uses unregistered visible light bandwidth instead of the overused radio spectrum. However, in spite of all ...

2005
Hakki H. Refai James J. Sluss Hazem H. Refai Mohammed Atiquzzaman

Free space optics (FSO) is a technology that uses modulated optical beams to transmit information line-of-sight through the atmosphere. To date, the primary focus of FSO research and development has been toward the transmission of digital signals, primarily for “last mile” applications. This paper reports the use of FSO to transport modulated radio frequency (RF) analog signals, together with a...

2013
Nitin Shankar Singh

This paper analytically investigates bit error rate (BER) performance of Free Space Optical (FSO) system. The FSO which is rapidly gaining popularity for its cost effectiveness and efficient means of transferring high data rates as well as optical fiber, whose data rate is limited by the atmospheric turbulence and scintillation conditions are studied. Orthogonal Frequency Division Multiplexing ...

2014
Priyanka Jangir Bhupendra Suman Rashmi Chaudhary

Free space optical (FSO) communication involves the use of optical or laser beams to send the information through the atmosphere. The key towards our vision is the use of FSO technology which in contrast to traditional wireless of RF technologies has lower interference footprint, can support longer range and offers higher bandwidth. In this paper we review the recent advances made in the field ...

2015
Casey Charles

Free Space Optical (FSO) communications use modulated collimated light energy, usually in the form of an infrared (IR) laser, to transmit data. This affords FSO many appealing qualities such as a very high bandwidth capability, a high level of security through a low probability of detection (LPD) and a low probability of intercept (LPI), and a signal that is impervious to radio frequency (RF) i...

Journal: :Wireless Networks 2011
Di Wang Alhussein A. Abouzeid

In this paper the per-node throughput and end-to-end delay of randomly deployed (i.e. ad-hoc) hybrid radio frequency free space optics (RF/FSO) networks is studied. The hybrid RF/FSO network consists of an RF ad hoc network of n nodes, f(n) of them, termed ‘super nodes’, are equipped with an additional FSO transceiver with transmission range s(n). Every RF and FSO transceiver is able to transmi...

Journal: :Ad Hoc Networks 2013
Abdullah Sevincer Mehmet Bilgi Murat Yuksel

Free-Space-Optical (FSO) communication has the potential to achieve very high wireless communication rates at tens of GHz. Although it has the advantage of high-speed optical modulation, FSO communication is prone to mobility and it requires establishment and maintenance of line-of-sight (LOS) between FSO transceivers since FSO transceivers are highly directional. We consider FSO structures wit...

Journal: :IEICE Transactions 2016
Tawfik Ismail Erich Leitgeb Thomas Plank

Increasing demand in data-traffic has been addressed over the last few years. It is expected that the data-traffic will present the significant part of the total backbone traffic. Accordingly, much more transmission systems will be required to support this growth. A free space optic (FSO) communication is the greatest promising technology supporting high-speed and high-capacity transport networ...

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