Performance of FSO Links for BPSK Modulated Signal with Atmospheric Turbulence and Pointing Error | Zendy

Simran Kaur | Zendy; Priyanka Bhardwaj | Zendy

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Performance of FSO Links for BPSK Modulated Signal with Atmospheric Turbulence and Pointing Error

Author(s) -

Simran Kaur,

Priyanka Bhardwaj

Publication year - 2018

Publication title -

international journal of computer applications

Language(s) - English

Resource type - Journals

ISSN - 0975-8887

DOI - 10.5120/ijca2018917301

Subject(s) - computer science , phase shift keying , turbulence , atmospheric turbulence , signal (programming language) , telecommunications , bit error rate , physics , meteorology , channel (broadcasting) , programming language

Free-Space Optical communications (FSO) propagated over a clear atmosphere suffers from irradiance fluctuation caused by small but random atmospheric temperature fluctuations. This results in decreased Signal-to-Noise Ratio (SNR) and consequently impaired performance. In this paper, the Bit Error Rate (BER) performance of FSO communication systems employing Binary Phase Shift Keying (BPSK) modulation is derived. To evaluate the system error performance in weak turbulence regime, the Probability Density Function (pdf) of the received irradiance after traversing the atmosphere is modeled using the log normal distribution. The effects of pointing errors on the performance of a FSO communication system are studied

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