Management of Switching in Hybrid FSO/RF Link

This paper deals with fibreless optical link in combining with Radio Frequency (RF) link. Each of links has advantages which make them convenient for reliable high speed communication link. The transmission medium is air for both links. Atmospheric phenomena cause decreasing of transmitted signal in different ways. The fog, dust and small particles are critical parameter for Free Space Optics (FSO) link, because they decrease visibility and availability of FSO systems. The dense rain causes attenuation of radio waves. Therefore, it is important to know when and how to do the switching process to maintain high speed data transmission process. There exist several ways, which are described in this paper and one method is used to do switching process in hybrid FSO/RF link at the Technical University's campus of Kosice (TUKE).