Nowadays, mobile communications is a widely used technology. The development of mobile communications has never been faster. The main goal of mobile communications is to increase the data throughput and to ensure the best possible quality of communication between users without taking into account the environment in which they are situated and the type of data they share. In this thesis LTE-A system was evaluated. LTE-A technology represents the forth generation of mobile communication systems. Its goal is to ensure higher data transmission speed, frequency band flexibility, to increase system capacity, coverage, spectral efficiency and to decrease latency. Radio resource management algorithms have an important role in achieving these goals. Hence, the evaluation of LTE-A system, concerning the used algorithms for radio resource management, was carried out in this thesis. The algorithms used in thesis are: Round Robin, Best CQI, Proportional Fair Sun, Resource Fair and MaxMin. Also a FFR method, which represents a new way of resource allocation in LTE-A systems was used in this thesis. System performance was observed according to the following parameters: average throughput of user equipment, peak throughput of user equipment, edge throughput of user equipment, spectral efficiency of user equipment, average cell throughput and fairness in radio resources allocation. Vienna LTE-A System Level Simulator was used for conducting evaluation of LTE-A system.