标题: | 改良式3GPP无线电空时通道模拟器之建构与应用 Construction and Application of Modified 3GPP Spatio-Temporal Channel Simulator |
作者: | 王继贤 Chi-Hsien Wang 唐震寰 张文辉 Tenn-Hwan Tarng Wen-Whei Chang 电信工程研究所 |
关键字: | 通道;模拟器;空时;3GPP;channel;simulator;spatio;temporal |
公开日期: | 2002 |
摘要: | 本论文以3GPP无线电通道模型为基准,分别针对其系统层通道模型及连接层通道模型二个部分加以改良,建构可反应真实环境之通道模拟器。其中利用统计实际环境之多重路径生成与消失率,计算实际环境之多重路径变化率,以此变化率增加了系统层模型中多重路径抵达角度之时变特性。并藉由量测实际环境之通道脉冲响应,建构可供第三代通讯系统做连接层模拟所需之通道模型资料库,以增加3GPP连接层通道模型之选择性,完成了改良式3GPP无线电空-时通道模拟器。并建构宽频分码多工存取系统,分析系统在此改良式3GPP通道模拟器下之效能及影响。 In this thesis, a channel simulator has been developed with the aim to present the channel models based on the 3GPP radio channel model, which contains the system-level and link-level, and to describe the methods to modify the channel models. Applying the birth rate and death rate of the multipath in the realistic environment, the system-level channel model is improved by extending the time-variant characteristic of the AOA of the multipath. The database of the channel model is established by measuring the impulse response of the different environments. Thus the selection of the link-level channel models is increased. Finally, the performance of the WCDMA system in the modified simulator is also evaluated. The simulator aims at being used as a simulation platform for 3G wireless communication systems. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT910435043 http://hdl.handle.net/11536/70576 |
显示于类别: | Thesis |