Review of Technique and Performance Analysis of FSO (Free Space Optical Fiber)

This paper present literature review on performance analysis of FSO how the FSO perform on different effect of FSO channels like log normal gamma gamma exponential. This also includes the different modulation scheme like OOK, QPSK, and BPSK. The main focus of this paper is pointing error of FSO on Matlab. Pointing errors are the result of misalignment in the transmitter and receiver or from disturbances. In FSO link intervals, pointing errors and attenuation can lead to increased BER and link failures. A minor change in the pointing error could cause high power loss. To solve this problem, it is necessary to apply system techniques such as automatic tracking, narrow beam transmission and high power, high sensitivity receiver, weather monitoring should be applied.