| 一种LTE上行多用户MIMO信道估计算法 |
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| 引用本文： | 吕喆,朱宇霞,张元雨.一种LTE上行多用户MIMO信道估计算法[J].电视技术,2014,38(11). |
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| 作者姓名： | 吕喆 朱宇霞 张元雨 |
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| 作者单位： | 1.武汉邮电科学研究院 2.北京北方烽火科技有限公司,1.武汉邮电科学研究院 2.北京北方烽火科技有限公司,北京北方烽火科技有限公司 |
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| 摘 要： | LTE系统支持上行多用户MIMO,采用多用户MIMO时不同用户的参考信号资源映射位置完全重叠,这给信号估计带来一定的困难。针对上述场景利用Zadoff-Chu序列的性质提出了一种多用户MIMO场景下基于DFT的信道估计算法。该算法能够有效地区分不同用户的参考信号并通过去噪声、减小边缘效应等手段使得信道估计有较好的效果,提升了用户的检测性能。
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| 关 键 词： | LTE 多用户MIMO 信道估计 DFT |
| 收稿时间： | 2013/10/9 0:00:00 |
| 修稿时间： | 2013/12/11 0:00:00 |
A Novel Channel Estimation Method for Uplink Multi-User MIMO in LTE System |
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| LV Zhe,ZHU Yuxia and ZHANG Yuanyu.A Novel Channel Estimation Method for Uplink Multi-User MIMO in LTE System[J].Tv Engineering,2014,38(11). |
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| Authors: | LV Zhe ZHU Yuxia and ZHANG Yuanyu |
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| Affiliation: | 1.Wuhan Research Institute of Post and Telecommunication 2.Beijing Northern FiberHome Technologies Co., Ltd,1.Wuhan Research Institute of Post and Telecommunication 2.Beijing Northern FiberHome Technologies Co., Ltd,Beijing Northern FiberHome Technologies Co., Ltd |
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| Abstract: | Uplink MU-MIMO could be used in LTE system. When used, the reference signals of different users are completely overlapped. This results in some difficulties to realize channel estimation. In this paper, a DFT-based channel estimation algorithm is proposed, which can separate the reference signals of different users using the properties of Zadoff-Chu sequences. The simulation shows that the performance is efficient. |
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| Keywords: | LTE MU-MIMO channel estimation DFT |
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