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UWB-OFDM系统中基于矩阵特性的ICI消除

ICI Cancellation in UWB-OFDM Systems Based on ICI Matrix Properties
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摘要 对UWB-OFDM系统ICI消除算法进行研究,首先分析了系统ICI的产生机理,在此基础上,提出一种基于矩阵特性的ICI消除的快速算法.信道模型采用IEEE UWB的CM1和CM4模型,系统仿真实验结果表明,该文基于矩阵特性的ICI消除快速算法在不同的超宽带室内信道环境以及不同的归一化频率偏移情况下均具有较好的性能,同时算法计算复杂度较低. This paper studies the cancellation methods of ICI in UWB-OFDM systems. The mechanism of ICI is analyzed. A novel method of ICI cancellation based on ICI matrix properties is then proposed. Simulation results based on IEEE UWB channel models CM1 and CM4 show that, with the proposed ICI cancellation method, complexity of calculation can effectively be reduced with better performance over different UWB indoor channel environments and normalized different frequency shifts.
作者 齐丽娜 干宗良 朱洪波
机构地区 南京邮电大学通信与信息工程学院
出处 《应用科学学报》 CAS CSCD 北大核心 2007年第6期570-576,共7页 Journal of Applied Sciences
基金 国家自然科学基金资助项目(60572024)
关键词 超宽带-正交频分复用(UWB-OFDM) 子载波干扰(ICI) 时变多径信道 均衡 uhra-wideband OFDM （ UWB-OFDM ） inter-carrier interference （ ICI ） variant muhipath channel equalization
分类号 TN911 [电子电信—通信与信息系统]
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参考文献14

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应用科学学报
2007年 第6期

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