| 利用时域相关的MIMO-OFDM信道估计算法 |
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| 引用本文： | 周明宇,李立华,张平,王海峰,王锐,姜军,陶小峰.利用时域相关的MIMO-OFDM信道估计算法[J].系统仿真学报,2008,20(23):6343-6346,6352. |
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| 作者姓名： | 周明宇 李立华 张平 王海峰 王锐 姜军 陶小峰 |
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| 作者单位： | 泛网无线通信教育部重点实验室(北京邮电大学)，北京邮电大学无线新技术研究所，诺基亚技术平台 |
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| 基金项目： | 国家自然科学基金项目
，
国家"863计划"项目
，
高等学校博士学科点专项科研基金资助课题
，
诺基亚公司合作项目
，
北京邮电大学研究生创新项目
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| 摘 要： | 提出了一种适用于多入多出正交频分复用(MIMO-OFDM)系统的信道估计算法,详细说明了导频符号的特殊设计算法以及信道估计算法的原理,并对该算法的均方误差性能以及复杂度进行分析;该算法能够在信道多径时延信息准确已知或不准确时带来良好的估计精度,从而保证系统性能。将该算法应用于超三代-时分双工(B3G-TDD)系统中并在室外和室内环境下仿真,均方误差和系统误码率性能结果说明了该算法的有效性;该算法能够大大增强系统的鲁棒性。
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| 关 键 词： | 多入多出 正交频分复用 信道估计 导频设计 时域冲激响应 |
Channel Estimation Algorithm Utilizing Correlation in Time-Domain for MIMO-OFDM Systems |
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| ZHOU Ming-yu,LI Li-hua,ZHANG Ping,WANG Hai-feng,WANG Rui,JIANG Jun,TAO Xiao-feng.Channel Estimation Algorithm Utilizing Correlation in Time-Domain for MIMO-OFDM Systems[J].Journal of System Simulation,2008,20(23):6343-6346,6352. |
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| Authors: | ZHOU Ming-yu LI Li-hua ZHANG Ping WANG Hai-feng WANG Rui JIANG Jun TAO Xiao-feng |
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| Institution: | ZHOU Ming-yu1,2,LI Li-hua1,2,ZHANG Ping1,2,WANG Hai-feng3,WANG Rui1,2,JIANG Jun1,2,TAO Xiao-feng1,2 |
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| Abstract: | A channel estimation algorithm was proposed for multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) systems.The special design for pilot symbols and theory for the channel estimation algorithm were given in great detail,and the mean-square-error (MSE) performance and complexity of the algorithm were analyzed.The algorithm could bring excellent estimation precision when information of channel multi-path delay was known exactly or inaccurately,and it could guarantee system performance.The algorithm was applied in beyond 3G-time division duplex (B3G-TDD) system and simulation was carried out under both indoor and outdoor environments.The results of MSE and bit error rate performance show the effect of the algorithm.This algorithm can improve system robustness greatly. |
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| Keywords: | multiple input multiple output orthogonal frequency division multiplexing channel estimation pilot design pulse response in time domain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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