室内无线通信系统的路径损耗模型研究

Study on path-loss model of indoor wireless communication system

随着移动通信技术的蓬勃发展,室内无线通信也得到了广泛的应用,然而,室内环境的复杂性和多变性,也为室内无线通信技术的发展和普及带来了许多挑战。信号在传输时,要受到反射、绕射、散射、多径传播等多种因素的影响,这给研究无线信道带来很多困难,因此建立路径损耗模对于研究室内通信系统的特性十分必要。无线信道的路径损耗模型包括位置通用模型(像ITU模型,WINNER模型等)和位置专用模型(像d1-d2模型,Supachai Phaiboon模型等),文章将会对这两类模型分别进行分析。

With the flourishing development of mobile communication technology, indoor wireless communication has been extensively applied, its usage made our lives more convenient and comfortable. However, the complexity and changeability bring more challenges into the development and popularity of indoor wireless communication. It is necessary to establish path loss model for indoor communication system, because the multipath propagation and other factors like reflection, diffraction, scattering will brings many difficulties on the research.The path loss model of wireless channel includes general model（such as ITU model, WINNER model）and location specific model d1-d2 model, Supachai model, Phaiboon model, etc.）. This paper will analyze these two kinds of models.