| DS-UWB与TH-UWB系统在多径信道下的性能分析 |
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| 引用本文： | 杨银霞,颜彪,胡倩.DS-UWB与TH-UWB系统在多径信道下的性能分析[J].无线电通信技术,2010,36(2):1-3. |
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| 作者姓名： | 杨银霞 颜彪 胡倩 |
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| 作者单位： | 扬州大学,信息工程学院,江苏扬州225009 |
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| 摘 要： | 在IEEE.802.15.3a工作组建议的标准UWB室内信道模型下,采用选择性Rake接收机(S-Rake)和部分Rake接收机(P-Rake),系统分析了DS-UWB和TH-UWB系统性能,并进行了仿真。仿真结果表明,在多用户情况下,DS-UWB系统性能优于TH-UWB系统;并且随着帧数的增加,TH-UWB系统的性能将变差,而DS-UWB系统性能随码片数的增加而改善;此外,DS-UWB和TH-UWB系统性能均随S-Rake和P-Rake接收机叉指数的增加而改善,采用S-Rake接收机时的系统性能要优于P-Rake接收机。
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| 关 键 词： | DS-UWB TH-UWB Rake接收机 |
Analysis on Performance of DS-UWB and TH-UWB Systems in Multipath Channel |
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| YANG Yin-xia,YAN Biao,HU Qian.Analysis on Performance of DS-UWB and TH-UWB Systems in Multipath Channel[J].Radio Communications Technology,2010,36(2):1-3. |
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| Authors: | YANG Yin-xia YAN Biao HU Qian |
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| Affiliation: | YANG Yin-xia,YAN Biao,HU Qian(Information Engineering Institute,Yangzhou University,Yangzhou Jiangsu 225009,China) |
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| Abstract: | This paper analyzes the performance of two kinds of ultra wideband systems,namely Direct Sequence (DS) and Time Hopping (TH).In the UWB indoor channel model proposed by a study group for IEEE.802.15.3a,the S-Rake and P-Rake are employed in the systems.The simulation results show that the performance of DS-UWB system is better than that of TH-UWB system in multi-user environment.Also,it introduces that the performance in TH-UWB becomes worse with increasing the number of frames,and the performance in DS-UWB ... |
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| Keywords: | DS-UWB TH-UWB |
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