Optimizing the receiver aperture parameters of free space optical (FSO) link for performance enhancement.

Due to the rising need for high-speed applications, free-space optical (FSO) communication links can solve the problem of bandwidth limitation and allow the current network architecture to handle data traffic efficiently. FSO communication uses laser signal for trasnsmittig data signal and the free space acts as propagating channel for the data transmission. As the FSO links transfer data through the atmospheric channel, the performance of the FSO link is significantly affected by the dynamic channel conditions. Consequently, the performance of FSO system deteriorates and the desried link availability and link performance is not achieved. Hence, it becomes necessary to ensure optimal performance of FSO link under the degrading effect of atmospheric channel. The receiver aperture characteristics of the FSO link are a very crucial factor in designing and installation of FSO links. This paper aims to optimize the receiver design parameters of the FSO link to improve the system performance. The appropriate configuring of receiver aperture diameter ensures the maximum collection of FSO signals at the receiver terminal and results in improved performance of FSO system. [ABSTRACT FROM AUTHOR]