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MIMO-OFDM系统信道估计中的最优导频设计 被引量：3

Optimum Pilot Design in MIMO-OFDM System
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摘要 推导了MIMO-OFDM系统最优频域导频序列设计准则,推广传统两天线正交导频设计法到了任意天线时的设计,提出了一种导频信号峰均比为1,能达到正交导频时信道估计均方误差MSE下界的频域导频序列设计方法。并用仿真评估分析所提方法与传统设计方法在不同序列长度和天线数目情况下的性能差异,仿真结果表明采用这里所采用的正交导频序列设计方法可以减少序列的长度,提高系统的性能。 The optimum design criteria of frequency domain pilot sequences in MIMO-OFDM system are derived,and the traditional design method for orthogonal pilot sequences in two transmit antennas scenario is extended to arbitrary transmit antennas scenario.And a design method for frequency domain orthogonal pilot sequences is proposed,which could achieve the lower bound of MSE and keep the PAPR of pilot signal to one.Finally its performance under different length of pilot sequence and number of transmit antennas is compared with the performance traditional scehemes.Simulation results have proved theoretical analysis and correctness of this design method.
作者 汪敏 胡泽 肖斌
机构地区 西南石油大学电子信息工程学院 西南石油大学计算机科学学院
出处 《通信技术》 2010年第6期19-20,23,共3页 Communications Technology
基金 西南石油大学校级科技基金资助(编号:2007XJZ108)
关键词 多输入多输出 正交频分复用 信道估计 导频 MIMO OFDM channel estimation pilot
分类号 TN92 [电子电信—通信与信息系统]
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参考文献6

二级参考文献23

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共引文献34

同被引文献19

  • 1周慧强,周世东,王京.MIMO-OFDM系统的时域导频信道估计算法[J].清华大学学报（自然科学版）,2005,45(10):1352-1355. 被引量：2
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通信技术
2010年 第6期

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