###### Abstract  
Device-to-device (D2D) communication is affirmed as one of the dynamic techniques in improving the network throughput and capacity and reducing traffic load to the evolved Node B (eNB). In this paper, we propose a resource allocation and power control technique in which two-pairs of D2D users can simultaneously share same uplink cellular resource. In this case, interference between D2D users and cellular users is no longer insignificant so it must be properly handled. The proposed scheme considers fractional frequency reuse (FFR) scheme as a promising method that can relatively reduce the intra-cell interference. The main objective of the proposed scheme is to maximize the D2D communication throughput and overall system throughput by minimizing outage probability. Hence, we formulate an outage probability problem and overall system throughput optimization problem while guaranteeing minimum allowable signal-to-interference-plus-noise ratio (SINR). For fair distribution of cellular resources to multiple D2D pairs, we used [PERSON]'s fairness index (JFI) method. Simulation is conducted in MATLAB and our simulation results demonstrate that the proposed scheme achieves remarkable system performance as compared with existing methods. device-to-device communication; fractional frequency reuse; outage probability; [PERSON]'s fairness index; throughput +
Footnote †: journal: Computer Science and Technology Letters  
0000-0001-5000-0000-0000-0000-0000-0000-0000-0000-00000-0000-00000  
spectral efficiency and throughput and reduced latency. In spite of various advantages provided by the D2D communication, it introduces various challenges on the communication system. Two important challenges are: inter-cell interference generated by D2D transmitter to the cellular user and interference from the cellular user to the D2D receiver [4]. The presence of interference could result in performance degradation of cellular and D2D communications system. Therefore, there is a need for an effective solution that guarantees D2D communications will not generate deleterious interference to conventional cellular users. A thorough review on different interference mitigation schemes has been employed in [5]. The main challenges introduced due to the integration of D2D in conventional cellular networks, namely device discovery, mode selection, resource management, security, etc., have been discussed thoroughly. From their investigation, the authors concluded that the multi-antenna beamforming with power control technique minimizes intra-cell and inter-cell interference in the network. In [6], the authors proposed an intelligent resource management scheme for D2D communications in heterogeneous networks in which the network-assisted devices are controlled based on the specific information broadcast. However, in this scheme, the power control method was not considered. A power control method for D2D communication underlaying uplink cellular networks was studied in [7]. In this study, the performance of the system was analyzed by considering both D2D and cellular communication simultaneously. Comparing the result of the proposed scheme with conventional cellular communication demonstrates the enhancement of system throughput. In [8], a problem of joint resource block and power allocation in D2D communications underlaying uplink cellular networks was discussed. The study analyzed the optimization problem to reduce the total interference of the cellular and D2D links in the system. The results showed that their proposed scheme improves the sum data rate and reduces the power consumption. The disadvantage of this study is: an omni-directional antenna was assumed for cellular users and thus the proposed scheme is not spectrally efficient. Therefore, we can achieve higher spectrum efficiency by considering fractional frequency reuse (FFR) technique, where the whole cell area is divided into two non-overlapping regions, namely inner cell and edge cell regions [9].