Simulation and Performance Analysis of Free Space Optical System using Bessel Filter under Different Atmospheric Disturbances
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2016 by IJETT Journal|
|Year of Publication : 2016|
|Authors : Ranjeet Singh, Neel Kamal Sharma, Bikram Beri
|DOI : 10.14445/22315381/IJETT-V38P206|
Ranjeet Singh, Neel Kamal Sharma, Bikram Beri"Simulation and Performance Analysis of Free Space Optical System using Bessel Filter under Different Atmospheric Disturbances", International Journal of Engineering Trends and Technology (IJETT), V38(1),26-31 August 2016. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Free space optics is an upcoming field in the communication world. It will provide highest band width, high security, efficient power transmission and less distortion as compared to all other wireless networks, but with all these advantages, free space optics communication is very much affecting with the atmospheric turbulence like haze, rainfall, snow, fall etc. A small amount of dust particle can starch the light beam and provide a high amount of attenuation in the signal. This work tries to reduce the effect of this atmospheric turbulence and make communication as far as possible using optisystem simulator. Signalling rate taken is 2.5GHz, transmitting power is 10 to 30 db and NRZ encoding technique is taken during transmission, transmitter channel is FSO and for reception an avalanche photodiode with Bessel filter is taken .This work also presents the effect of receiving aperture on the signal and shows a communication link more than 180 km in clear weather, 54.5 km in haze with 2.5GHz data rate.
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This work also presents the effect of receiving aperture on the signal and shows a communication link more than 180 km in clear weather, 54.5 km in haze with 2.5GHz data rate.