基于空间Poisson点过程的无人机异构网络中断性能评估

考虑无人机空间分布特性给城市热点区域网络部署与设计带来的挑战,基于随机几何理论构建了空间无人机异构网络框架.首先,通过三维部署空中小基站和二维部署地面宏基站的方式对网络进行混合干扰建模,借助最大偏置接收功率级联准则来实现各基站的负载均衡;此外,考虑无人机通信特性,将空对地信道假设为Nakagami-m衰落模型;最后通过...

Outage Performance Evaluation of Drone HetNet Based on Spatial Poisson Point Process

Considering the challenges brought by the spatial distribution of drones to the deployment and design of urban hotspot area networks， a heterogeneous network framework for space drones is constructed based on stochastic geometry theory. Firstly， the mixed interference model is built by three-dimensional deployment of air small base stations and two-dimensional deployment of ground macro base stations， and the load balance of each base station is achieved by using the maximum bias received power association strategy； In addition， considering the communication characteristics of drones， the air to ground channel is assumed as Nakagami-m fading model； Finally， the mathematical expression of network outage probability is obtained through the distribution of association probability and communication distance between users and base stations. The simulation results show that the scheme of three-dimensional dense deployment of drones can more realistically reflect the interruption performance of drones in hot service scenarios. At the same time， the network performance can be effectively improved by properly setting the bias factor and increasing the density of drones.