| 摘要: |
| 针对频率非选择性无线多径衰落信道，基于室外通信环境下的空
心圆模型，提出了一种改进的适应于室内通信环境的空心圆模型。通过推导接收信号的空时
联合分布以及边缘分布概率密度函数，分析和比较了两种空心圆几何信道模型的空时统计特
性。通过空心圆的空心率以及收发机间距的信道参数变化，仿真结果阐明了空心圆模型在圆
盘模型和圆环模型之间过渡的变化机理，以及不同无线通信环境下的信道信息。 |
| 关键词: 移动通信 室外和室内环境 几何信道模型 空心圆 概率密度
函数 圆盘模型 椭圆模型 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（61072137）；江苏省科技支撑计划
（工业）项目（BE2011298）；江苏省高校自然科学科学研究计划（08KJB510009） |
|
| Analysis and comparisons of geometrical-based spatial channel models for indoor and outdoor wireless propagation environments |
| QIU Lin,ZHOU Jie,LI Chun-mei,Hisakazu Kikuchi |
| () |
| Abstract: |
| For the frequency non-selective wireless multipath fading channel, an improved
hollow-disc model is proposed for indoor communication environments based on th
e hollow-disc model for outdoor communication environment. The joint and margin
al probability density function(PDF) of angle of arrival(AOA) and time of arriva
l(TOA) are derived in closed-form expressions. The spatial and temporal statist
ical properties of these two hollow-disc models are analysed and compared. By v
arying the hollow-disc ratio and the distance between base station and mobile s
tation, simulations illustrate the variation mechanism when hollow-disc models
transits from the circle-disc to ring model, and channel information under diff
erent wireless communication environments. |
| Key words: mobile communication outdoor and indoor environments g
eometrical spatial channel model hollow disc probability density function DBSBCM |
