Analysis of network topology and deployment mode of 5G wireless access network

Aiming at the characteristics of high-density and random deployment of 5G cellular networks, through efficient network-level deployment methods, the network can quickly and efficiently adapt to large-scale dynamic changes in user traffic. Aiming at the need for 5G systems to meet the requirements of high-speed mobile environment communications, this paper deeply studies the factors that affect communication quality in mobile scenarios and their relationships. Based on this, around the content transmission and distribution of information, a 5G mobile communication network architecture based on content-centric network technology is proposed. To meet the deployment requirements of cross-domain VNF (Virtual Network Function) during the deployment phase, in order to solve the problem that the existing cross-domain deployment algorithms do not take into account node computing resources and link bandwidth resources, this paper proposes a DPSO-K (Discrete Particle Swarm Optimization-Kruskal) 5G cross-domain virtual network function deployment method. Compared with the traditional method, the overall cost is reduced, and the cost is least affected by the number of data fields. In different practical scenarios, the resource reduction gain of the strategy is evaluated. Simulation results verify the impact of different system parameters on the energy efficiency of the network. The results show that this method has obvious advantages in optimizing the energy spectrum efficiency of randomly deployed networks.