Fairness of radio resource partitioning for macrocell and femtocell networks

Radio resource partitioning is a vital feature that ought to be considered to further enhancing the overall performance of the Orthogonal Frequency Division Multiple Access (OFDMA) system. Radio resources can be allocated in either time domain or frequency domain in OFDMA system. As the emergence recent technologies such as femtocell, which is it underlay the macrocell network, the users fairness of sharing the network resource become the important issue. Therefore this scenario can potentially some users excessive consumes the network resource and it incommode the other users if the network resources are not proper planned. This paper presents the Fractional Frequency Reuse (FFR) scheme that can fair partition the radio resource of the macrocell and femtocell networks. The scheme focuses on the analyzing and improving the macrocell user's fairness and maximizes the femtocell capacity. The simulation results show that choosing spectrum splitting ratio (SSR) and fraction of radius becomes important since different total capacities and fairness level can be achieved with these two values.