Optical Wireless Communication (OWC) otherwise known as Free Space Optical (FSO) communication is a future ready wireless technology which solves many communication bottlenecks at very low implementation cost. The performance of FSO is sensitive towards the atmospheric turbulence. By using a proper error correction code this effect can be mitigated. This paper deals with the basic concept of FS...

In this letter, we investigate the error rate performance of free-space optical (FSO) links over strong turbulence fading channels together with misalignment (pointing error) effects. First, we present a novel closed-form expression for the distribution of a stochastic FSO channel model which takes into account both atmospheric turbulence-induced fading and misalignment-induced fading. Then, we...

This paper investigates fading correlation in space-diversity free-space optical (FSO) communication systems and its effect on the link performance. We firstly evaluate the fading correlation in multiple-aperture FSO systems using wave-optics simulations. The influence of different system parameters including the link distance and aperture spacing is illustrated under realistic beam propagation...

This paper proposes a theoretical study to characterize the transmission of optical code division multiple access (CDMA) systems deploying polarization shift keying (PolSK) over a free space optical (FSO) link under the impact of atmospheric turbulence. In our analysis, a novel transceiver architecture for atmospheric OCDMA FSO systems based on polarization modulation with direct detection is p...

Introduction The International Commission on Microbiological Specifications for Foods (ICMSF) has proposed a preventative scheme for managing microbial risks in foods that introduces the important new concept of a food safety objective (FSO). The FSO concept translates public health risk into a definable goal: a specified maximum frequency and/or concentration of a [microbiological] hazard in a...

The atmospheric lightwave propagation is considerably influenced by the random variations in the refractive index of air pockets due to turbulence. This undesired effect significantly degrades the performance of free-space optical (FSO) communication systems. Interestingly, the severity of such random degradations is highly related to the range of atmospheric propagation. In this thesis, we int...