Handover Simulation Based on a Two-Rays Ground Reflection Model

K. Uchida, J. Honda, Taro Tamaki, M. Takematsu
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引用次数: 6

Abstract

This paper is concerned with a numerical simulation for mobile stations moving randomly in a cellular electromagnetic environment. Two modal fields, 1-ray and 2-rays models, are proposed to simulate propagating waves radiated from a base station in urban, suburban or open area. Amplitude modification factor ƒ¿ and propagation order of distance $\beta$ are introduced in order to include the effect of reflection, shadowing and diffraction from various structures existing on a ground plane. In this study each cell is assumed to be composed of a hexagon with a base station at its center, and the above mentioned two parameters change from one cell to another. Considering a CDMA system, a soft handover using a marginal received power is performed by comparing the received powers from different base stations. It is demonstrated that the times of hand-overs are reduced depending on the value of marginal received power.
基于双射线地面反射模型的切换仿真
本文研究了蜂窝电磁环境下随机移动基站的数值模拟问题。提出了两个模态场,1射线和2射线模型,以模拟从城市、郊区或开阔地区的基站辐射的传播波。引入幅度修正因子和距离的传播阶数,以包括反射、遮蔽和不同结构对地平面的衍射的影响。在本研究中,假设每个小区由一个六边形组成,其中心有一个基站,上述两个参数随着小区的变化而变化。在CDMA系统中,通过比较不同基站的接收功率来实现基于边际接收功率的软切换。结果表明,随着边际接收功率的增大,切换次数减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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