Characteristics of optical scattering and turbulence communication channels

Liu, Weihao; Xu, Zhengyuan

doi:10.1109/acssc.2014.7094794

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…In this respect, several empirical path loss formulas that relied on a large amount of experimental results up to 100 m have been initially proposed [81][82][83][84][85]. For the longer regime UV links, the detrimental impact from fully coupled scattering and atmospheric turbulence that becomes more important have been initially investigated in [86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101]. In [86], preparatory models over a wide turbulence strength regime were proposed, highlighting that under certain geometric conditions, the collected scattered signals at the receiver input are averaged leading to a smoothed signal at the receiver output.…”

Section: Ultraviolet Communicationmentioning

confidence: 99%

“…In [93], the NLOS scintillation probability density function (PDF) was emulated by adjusting an existing LOS scintillation lognormal distribution considering two different LOS links. In order to achieve less cumbersome computation processes, the authors in [96] proposed a conjunction of both numerical and analytical methods. Experimental results regarding the effect of turbulence on the received signal energy distribution instead of the average path loss were collected in [97].…”

Section: Ultraviolet Communicationmentioning

confidence: 99%

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Energy-Efficient Emerging Optical Wireless Links

Varotsos,

Aidinis,

Nistazakis

et al. 2023

Energies

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In recent years, the tremendous increase in data traffic carried by wireless communication networks has generated the urgent need for establishing more energy-efficient wireless communication systems. Recent advances in semiconductor and light devices have triggered remarkable research interest to the development of these optical wireless communication (OWC) links. Among them, free-space optical (FSO) links and, more recently, ultraviolet links which operate within the (UV-C) spectral band, have been considered as prime candidates to create both high speed and power effective line-of-sight (LOS) and non-light-of-sight (NLOS) free-air communication links, respectively. Moreover, transdermal optical wireless (TOW) links for telemetry with medical implants minimize the expense of power for the implant. In the current review, a background on the energy efficiency challenges in wireless communication is presented. Each of these OWC technologies is mainly discussed in terms of key energy consumption requirements and major limiting factors that affect their power performance. Energy-efficient modulation formats as well as other powerful techniques for performance enhancement such as diversity and relaying are assessed. The survey is concluded with a discussion regarding their future energy consumption requirements and trends.

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