| 卷积编码TH-UWB通信系统对抗ISI的性能仿真及分析 |
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| 引用本文： | 孔令通,贾怀义,杨维.卷积编码TH-UWB通信系统对抗ISI的性能仿真及分析[J].北京交通大学学报(自然科学版),2008,32(2):94-98. |
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| 作者姓名： | 孔令通 贾怀义 杨维 |
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| 作者单位： | 北京交通大学,轨道交通控制与安全国家重点实验室,北京,100044;中国矿业大学,煤炭资源与安全开采国家重点实验室,北京,100083;北京交通大学,轨道交通控制与安全国家重点实验室,北京,100044 |
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| 基金项目： | 国家自然科学基金
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煤炭资源与安全开采国家重点实验室(中国矿业大学)开放课题 |
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| 摘 要： | 针对UWB(超宽带)无线传感器网络中由多径效应引起的ISI(码间干扰)问题,在两个不同UWB信道环境下仿真了TH-PPM-UWB(跳时脉位调制超宽带)通信系统传输有无ISI及是否采用编码调制共8种情况下的误码性能,结果表明采用卷积编码的TH-PPM-UWB系统抵抗ISI的能力较无编码系统有较大的提高,并且ISI越严重,卷积编码调制越有效.
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| 关 键 词： | 超宽带 信道模型 跳时脉位调制 卷积码 码间干扰 |
| 文章编号： | 1673-0291(2008)02-0094-05 |
| 修稿时间： | 2007年3月23日 |
Analysis of Simulation Performance in TH-UWB Communication System by Using Convolution Codes to Against the ISI |
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| KONG Lingtong,JIA Huaiyi,YANG Wei.Analysis of Simulation Performance in TH-UWB Communication System by Using Convolution Codes to Against the ISI[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2008,32(2):94-98. |
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| Authors: | KONG Lingtong JIA Huaiyi YANG Wei |
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| Abstract: | In this paper,our work is focused on the ISI(inter symbol interference) that is caused by multipath effects in UWB based wireless sensor network,and we present the BER simulation of the TH-PPM-UWB(convolution coded and uncoded schemes) communication system that has ISI or not in two different channels,there are eight cases,and the results indicate that the coded scheme performs well to against ISI than that of the uncoded scheme,and the more serious the ISI become,the more efficient the coded TH-PPM-UWB. |
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| Keywords: | ultra-wideband(UWB) channel model time hopping pulse position modulation(TH-PPM) convolution codes inter symbol interference(ISI) |
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