Effect of Atmospheric Turbulence on Wireless Optical Link
نویسنده
چکیده
Wireless Optical Link A. Jabeena, M. Jasmine Pemeena Priyadarsini , PRV Bharat, V Radhakrishna, A.Salma Faculty, Faculty, Students, B. Tech [ECE], School of Electronics and Communication Engineering, VIT, Vellore. 5 Student, B.E [ECE], Department of Electronics and Communication Engineering, UCEA, Arni E-mail: [email protected], [email protected] Abstract In wireless optical communication system, communication is obtained between receiver and transmitter in free space. The major challenge for wireless optical communication system is the free space atmospheric attenuation and scattering caused by Scintillation and aerosol particles (Rain, fog, drizzle and haze). Analysis has been done for the statistical data and then compared with real time data to obtain the refractive index variation due to atmospheric attenuation which cause high impact on wireless optical link design.
منابع مشابه
Performance Improvement Techniques for Optical Wireless Link in Presence of Atmospheric Turbulence
Atmospheric turbulence can cause significant performance degradation in free space optical (FSO) communication system. Major effects on the beam such as beam wander and beam scintillation degrades the performance at the receiver. We investigate the impact of diversity technique and aperture averaging technique on the performance of FSO system. Performance evaluation is made in terms of average ...
متن کاملImpacts of the Negative-exponential and the K-distribution modeled FSO turbulent links on the theoretical and simulated performance of the distributed diffusion networks
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 ...
متن کاملPaper Laser Beam Attenuation Determined by the Method of Available Optical Power in Turbulent Atmosphere
This work is focused on the atmospheric turbulence effect and a new method for determining optical signal attenuation caused by turbulence is presented here. A new method of power budget of optical links comes from optical intensity distribution in a laser beam after the beam passed through turbulent atmosphere. Results given by this method are compared with Rytov approximation which is nowaday...
متن کاملQuadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions
This paper proposes an analytical model for evaluating the performance of dense wavelength division multiplexing (DWDM) for all optical orthogonal frequency division multiplexing (AO-OFDM) optical wireless channel. The investigated performance for proposed system is evaluated for the parameters bit error rate (BER) and Q factor .The constellation diagrams, and bit error rate (BER) of the recei...
متن کاملEvaluation of Free Space Optical Communication Link for Moderate Atmospheric Turbulence
A mathematical model for free space optical communication system was developed for the evaluation of system to analysis the effect of Atmospheric Turbulence. The performance of the system is very good for the link range of small distance at different temperature conditions.
متن کامل