MIMO-OFDM无线通信系统鲁棒的二维导频辅助信道估计 |
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引用本文: | 李汀,杨绿溪. MIMO-OFDM无线通信系统鲁棒的二维导频辅助信道估计[J]. 扬州大学学报(自然科学版), 2004, 7(1): 32-35 |
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作者姓名: | 李汀 杨绿溪 |
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作者单位: | 东南大学无线电工程系,江苏南京,210096 |
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基金项目: | 国家863计划项目(2002AA123031),国家自然科学基金资助项目(69872009) |
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摘 要: | 结合MIMO(多输入多输出)系统中多天线之间导频信号存在干扰的问题,提出了一种MIMO-OFDM(多输入多输出-正交频分复用)无线通信系统的鲁棒的二维导频辅助信道估计方法。实验结果表明,该估计方法对无线信道的统计特性不是很敏感,在多输入多输出天线的时变无线信道中有很好的估计与跟踪性能。
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关 键 词: | MIMO-OFDM系统 无线通信系统 鲁棒 信道估计 正交导频信号 多输入多输出系统 |
文章编号: | 1007-824X(2004)01-0032-04 |
Robust two-dimensional pilot-symbol-aided channel estimation for MIMO-OFDM system in mobile wireless channel |
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Abstract: | This paper solves the problem of the interference between two pilots on different antennas and proposes a robust two-dimensional pilot-symbol-aided channel estimation technique for MIMO-OFDM(multi-input multi-output orthogonal frequency division multiplexing) system. The simulation results show that this channel estimation method is insensitive to the channel statistics and has a improved estimation and tracking performance for MIMO time-varying wireless channel. |
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Keywords: | MIMO-OFDM system robust channel estimation orthogonal pilot signals |
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