保护区域对无线Ad Hoc网络空间进度密度的影响

研究无线Ad Hoc网络容量的文章中,往往不会考虑如何抑制干扰信号功率,使得网络容量的提高受到很大限制。文章使用随机几何对无线Ad Hoc网络进行建模,研究空间进度密度这一容量定义,提出在无线Ad Hoc网络中通过设置保护区域的方式来抑制干扰信号功率,推导了网络的空间进度密度的近似值、上下界和最优保护区域半径等的理论表达式。理论分析与仿真结果说明,中断概率和空间进度密度的近似值和上下界能够很好的逼近仿真值；设置保护区域能够降低无线Ad Hoc网络中的干扰信号功率,提高空间进度密度。

Effect of the Density of Progress of Wireless Ad Hoc Networks with Guard Zone

In the study of the capacity of wireless Ad Hoc networks, the network capacity was difficult to increase for how to reduce the power of interference was often not considered. This paper used stochastic geometry to build the wireless Ad Hoc networks model, study the spatial density of progress, propose to set guard zone in wireless Ad Hoc networks to reduce the power of interference, and gave the theoretical expressions of the approximation, bounds and optimum radius of guard zone for the spatial density of progress. Theoretical analysis and simulation result showed that, the approximation and bounds of outage probability and spatial density of progress were close to the simulation value; guard zone could reduce the power of interference in wireless Ad Hoc networks, and increase the spatial density of progress.