Research on Power Control of D2D Communication System in 5G Network

Research on Power Control of D2D Communication System in 5G Network

Although D2D (device-to-device) communication can improve the spectrum utilization rate by multiplexing uplink resources in a 5G cellular network, it also brings interference to the 5G cellular network. So, the power of the D2D communication system should be controlled to reduce interference to cellular network effectively. Aiming at the above interference problem, a MPP-PPP (Matern Hard-core Point Processes-Poissonon Point Process) model is established to make it closer to the actual system situation, according to the randomness of the distribution of mobile terminals. Based on the model, an optimized power control method is proposed to achieve the optimization goal, according to the principle of system throughput maximization. The simulation shows that compared with the traditional scheme, the proposed algorithm can effectively improve system throughput with the QoS being satisfied.