| 摘要: |
| 在高铁高速移动场景下，对基于射频拉远（RRH）的宏小区协作多输入多输出正交频分复用（MIMO-OFDM）系统以及基于第三代合作伙伴项目（3GPP）协议的4RRH信道模型做了详细描述，并设计了相应的频偏估计算法以及信道估计算法.通过Monte-Carlo仿真实验对该系统做了性能分析研究，结果表明，该系统能够有效地克服多普勒效应，准确地恢复信道响应，从而达到较低的误块率（BLER）与较高的吞吐量，实现高速运动场景下的高性能. |
| 关键词: 射频拉远 长期演进高铁系统 多输入多输出 多普勒效应 信道估计 |
| DOI：10.3969/J.ISSN.1000-5137.2018.02.011 |
| 分类号:TN929.5 |
| 基金项目:国家自然科学基金（61571135） |
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| Performance analysis of macro cell MIMO-OFDM systems based remote radio head technology |
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Zhao Xin1, Zhou Xiaolin1, Jin Xiaocheng2, Xu Bing2
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1.School of Information Science and Technology, Fudan University, Shanghai 200433, China;2.Terminal Algorithm and Software Department, Wireless Technology Innovation Center of Datang Company, Shanghai 201206, China
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| Abstract: |
| Macro cell MIMO-OFDM system based remote radio head (RRH) and the 4RRH model of 3GPP protocol were detailly described in high speed scenario.Furthermore,the frequency offset estimation algorithm and the channel estimation algorithm about the given system were designed.Finally,simulation experiment was made to analyze the performance of the system designed.The simulation results showed that the system could overcome the Doppler effectively and accurately recover the channel response,which resulted in low block error rate (BLER) and high throughput and achieving excellent performance in high speed scenario. |
| Key words: remote radio head long term evolution-railway multiple input multiple output Doppler channel estimation |
