IV. ROF’S APPLICATIONS IN WIMAX SYSTEM
In a WiMAX system, the transmission loss of radio signal
beyond 3.5GHz is increased significantly, and its signal
coverage is reduced. Because of this, a novel design of
WiMAX system used RoF is presented. In this system, CS and
BS connects each other with fiber, so does the BS and
SS(Figure 9). By means of this method, the propagation
distance and coverage of the radio signal is increased, and the
higher frequency spectrum resources is thus developed to solve
the serious problem of spectrum scarcity in current
communication domain. There are several application occasion
in WiMAX system using RoF, such as last mile access, hot
spot coverage , vehicle communication system, etc.