Results 181 to 190 of about 10,661 (216)
Some of the next articles are maybe not open access.
Location Assisted Coding for FSO Communication
IEEE Transactions on Communications, 2017Recent years have witnessed an explosive growth in the number of wireless devices. This development has fueled much research in wireless access technologies to efficiently use radio frequency spectrum. On the other hand, recent advances in free space optical (FSO) technologies promise a complementary approach to increase wireless capacity.
Duong Nguyen-Huu +2 more
openaire +2 more sources
Embedded Coding Techniques for FSO Communication
2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017Free Space Optical (FSO) communication has received tremendous attention in recent years as an alternative approach to overcome the limited RF spectrum problem for wireless communication. Proposed FSO communication systems transmit information by modulating light.
Thuan Nguyen 0001, Thinh Nguyen
openaire +2 more sources
On the Capacity of Hybrid FSO/RF Links
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010Hybrid Free Space Optics (FSO)/Radio Frequency (RF) communication systems have emerged as a way to improve network performance by providing enhanced availability and reliability. In an effort to mitigate individual drawbacks in the optical link during adverse weather conditions, network traffic flows simultaneously between channels.
Hassan Moradi +4 more
openaire +1 more source
Comparison of FSO 10 Micrometer Availability with FSO 850 nm/RF Hybrid Network Availability
2009 IEEE 70th Vehicular Technology Conference Fall, 2009Free space optic (FSO) can provide line of sight, wireless, high bandwidth multi giga bits per second links to fulfil high data rate requirements of future communication applications. However, the widespread growth of FSO has been hampered by availability and reliability issues.
Farukh Nadeem +4 more
openaire +2 more sources
Hybrid FSO/RF-FSO Systems over Generalized Málaga Distributed Channels with Pointing Errors
2019 27th European Signal Processing Conference (EUSIPCO), 2019The combined effect of Malaga distributed atmospheric turbulence and pointing errors on the performance of a hybrid free-space optical (FSO)/ radio-frequency (RF)-FSO communication system is presented and analyzed in this paper. We considered three performance metrics, namely, outage probability, average bit error rate (BER) and average capacity.
Banibrata Bag +3 more
openaire +1 more source
Optimization of FSO quantum backscatter communication
Applied Optics, 2019In this paper, the free-space optics (FSO) quantum backscatter communication (QBC), inspired by the quantum illumination concept, is described. In this method, the transmitter generates entangled photon pairs. The signal photon is transmitted in the direction of the modulated retro reflector (MRR) or the tag antenna, and the idler photon is moved to ...
openaire +2 more sources
Enhanced performance of FSO link using OFDM and comparison with traditional TDM-FSO link
2015 IEEE International Broadband and Photonics Conference (IBP), 2015Free space optical (FSO) communication systems with its high data rate, capacity same as optical fiber and secure communication over unlicensed spectrum have become a promising technology where the installation of optical fiber is not possible. However, bit-error-rate (BER) performance of FSO link depends on the atmospheric conditions and turbulence ...
Pravindra Kumar, Anand Srivastava
openaire +1 more source
2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2017
This paper presents a new framework for long range Free Space Optical communication (FSO). Motivated by the ever-growing demand for communication in 5G networks, the suggested framework tackles the natural FSO link drawbacks, commonly: complicated installation, limited range, size and pricing. The new FSO concept assumes a “best effort” model.
Liat Rapaport +2 more
openaire +1 more source
This paper presents a new framework for long range Free Space Optical communication (FSO). Motivated by the ever-growing demand for communication in 5G networks, the suggested framework tackles the natural FSO link drawbacks, commonly: complicated installation, limited range, size and pricing. The new FSO concept assumes a “best effort” model.
Liat Rapaport +2 more
openaire +1 more source
2009 19th International Conference Radioelektronika, 2009
The paper deals with a bridge for atmospheric Free-Space Optical links. The atmospheric turbulence causes fades whose duration is typically in the order of tens of milliseconds, which results in the loss of hundreds or thousands of packets. The loss is misinterpreted by the TCP protocol as network congestion and leads to throttling the sender ...
Michal Kubicek, Zdenik Kolka
openaire +1 more source
The paper deals with a bridge for atmospheric Free-Space Optical links. The atmospheric turbulence causes fades whose duration is typically in the order of tens of milliseconds, which results in the loss of hundreds or thousands of packets. The loss is misinterpreted by the TCP protocol as network congestion and leads to throttling the sender ...
Michal Kubicek, Zdenik Kolka
openaire +1 more source
Effect of partial coherence on MISO FSO systems
2015 4th International Workshop on Optical Wireless Communications (IWOW), 2015Multiple-input single-output (MISO) techniques are employed in free space optical (FSO) systems to mitigate the degrading effects of atmospheric turbulence and therefore the link reliability is improved. In this paper, we consider an incoherent radial array beams and a finite sized slow detector for MISO FSO systems.
Muhsin Caner Gökçe +2 more
openaire +2 more sources