Free Space Optics (FSO) is a telecommunications technology that transmits data in the form of optical signals across the air and, as such, can be considered as a wireless (line-of-sight) transmission system; this technology is capable of handling data rates at the Gbps level, does not require licensing, and can be deployed at one-fifth of the cost of fiber; also, the narrow beams employed in th...

This paper presents a low-power VLSI neural processor that has been developed for highspeed vision processing based upon the frequency-sensitive self-organization (FSO) neural algorithm. Performance of this self-organization neural algorithm is proved to be efficient for adaptive vector quantization and can achieve near-optimal results. A system-on-chip design of the whole FSO neural system is ...

Although there has been a growing interest in the hybrid free-space optical link and radio frequency FSO/RF communication system, the current literature is limited to results obtained in moderate or cold environment. In this paper, using a soft switching approach, we investigate the effect of weather inhomogeneities on the strength of turbulence hence the channel refractive index under Qatar ha...

In this paper we introduce simulation of optical multi-element antennas that enable mobility and high bandwidth in Free Space Optical (FSO) networks. The challenge of FSO is to build systems that can tackle line of sight (LOS) alignment and maintenance issues. By addressing these critical aspects of LOS alignment in such networks, we demonstrate the potential for mobility by simulation. We can ...

In this paper, we present the measurements performed on a free space optics (FSO) communications link using an indoor atmospheric chamber. In particular, we have generated several different optical turbulence conditions, demonstrating how even the weak turbulence regime can strongly affect the FSO link performance. We have carried out an in-depth analysis of the data collected during the measur...

Free Space Optics (FSO) or optical wireless communication is a promising solution for the need to very high data rate point-to-point communication. In FSO communication links, atmospheric turbulence causes fluctuations in both the intensity and the phase of the received light signal, impairing link performance. This intensity fluctuation, also known as scintillation is one of the most important...

Free Space Optics (FSO), also known as Optical Wireless or Lasercom (i.e. Laser Communications), is a re-emerging technology using modulated optical beams to establish short, medium or long reach wireless data transmission. Most of the attention on FSO communication systems it was initially boost by military purposes and first development of this technology was dedicated to the solution of issu...

Wireless mesh network addresses the last mile issue. This technology utilizes radio frequency (RF). The practical limitations and challenges of RF based communication networks have become increasingly apparent over the past decade, leading researchers to seek new hybrid communication approaches. One promising strategy that has been the subject of considerable interest is the augmentation of RF ...

Wireless Free Space Optics (FSO) is one of the most promising candidates for future broadband communications, offering transmission rates far beyond possible by RF technology. However, free space wireless optical channel presents far more challenging conditions for signals than typical RF channels, making system availability and throughput a critical issue. A novel design for an FSO system base...