Radio over Fiber (RoF) is a promising solution for providing wireless access services. Heterogeneous radio signals are transferred via an optical fiber link using the digital or analog transmission techniques. This thesis comprises multiple studies to conclude the performance of analog RoF not only for the link-level but also the network-level. We could successfully introduce a very simple and easy-to-use solution adaptation technique, whose performance was shown to be outstanding. Firstly, for the link-level, when the RoF and the radio frequency (RF) devices have a nonlinear characteristic, these will generate the intermodulation distortion (IMD). In this research, the IMD interference in the uplink RF signals from the coupling effect between the downlink and the uplink antennas has been addressed. We propose a method using the dynamic channel allocation (DCA) algorithm with the predistortion (PD) technique to improve the throughput performance of the multi-channel RoF system. The carrier to distortion plus noise power ratio (CDNR) is evaluated for all channel allocation combinations; then the best channel combination is assigned as a set of active channels to minimize the effect of IMD. The results show that the DCA with PD has the lowest IMD and obtains a better throughput performance. Then, as a continuation study, we have considered the performance of network-level improvement using the centralization radio access network (C-RAN). The mobile backhaul and fronthaul are capable of deploying the cells at the indoor location. However, since its link topology is based on the point-to-point, the handover process must be activated whenever the mobile user moves across the cell. As for the indoor system, the number of handover is further increased than outdoor location because of the limitation of transmitting power of the indoor equipment. In the second part of this research, C-RAN incorporated with optical matrix switch is introduced instead of the point-to-point link. Simulation results show that the proposal reduces a huge number of handover compared to the conventional distributed radio access network.