| MIMO/SA多天线空时信道建模 |
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| 引用本文： | 吕郡陵,郭爱煌.MIMO/SA多天线空时信道建模[J].计算机工程,2012,38(3):100-103,115. |
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| 作者姓名： | 吕郡陵 郭爱煌 |
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| 作者单位： | 同济大学电子与信息工程学院,上海201804;毫米波国家重点实验室,南京210096 |
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| 基金项目： | 毫米波国家重点实验室开放课题基金资助项目（K201009） |
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| 摘 要： | 运用相关矩阵法，通过计算2根天线之间的相关系数、多输入多输出(MIMO)的相关矩阵，得到MIMO信道系数矩阵，在其中加入智能天线(SA)的导向向量和赋形向量，得到MIMO/SA矩阵，由此实现对MIMO/SA多天线空时信道的建模。利用Matlab搭建一个仿真平台，从空间、时间、频率3个方面分析MIMO/SA多天线信道模型，结果表明，该模型具有较好的信道方向性增益，信道的空时频特性符合3GPP 25.996的要求，可用于MIMO/SA多天线的设计、优化和信道容量分析。
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| 关 键 词： | 多输入多输出 智能天线 空时信道建模 相关矩阵法 功率时延分布 角度功率谱 |
| 收稿时间： | 2011-08-01 |
MIMO/SA Multi-antenna Space-time Channel Modeling |
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| LV Jun-ling
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GUO Ai-huang.MIMO/SA Multi-antenna Space-time Channel Modeling[J].Computer Engineering,2012,38(3):100-103,115. |
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| Authors: | LV Jun-ling GUO Ai-huang |
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| Affiliation: | 1. School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China; 2. State Key Laboratory of Millimeter Waves, Nanjing 210096, China) |
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| Abstract: | Based on correlation matrix method, Multiple-input and Multiple-output（MIMO） channel coefficient matrix can be obtained by calculating the correlation coefficient between two antennas and MIMO correlation matrix. The steering vector and beam-forming vector of Smart Antenna（SA） are added to the MIMO channel coefficient matrix to form MIMO/SA channel matrix, so that MIMO/SA multi-antenna space-time channel is modeled. A channel simulation platform is established to simulate and analyze MIMO/SA channel in time domain, frequency domain and space domain. Simulation results show that the model has a good channel directivity gain and the channel properties in space, time and frequency meet the demands of 3GPP TR 25.996, and it is useful for designing and optimizing MIMO/SA multi-antenna system and the analysis of channel capacity. |
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| Keywords: | Multiple Input and Multiple Output（MIMO） Smart Antenna（SA） space-time channel modeling correlation matrix method PowerDelay Profile（PDP） Power Azimuth Spectrum（PAS） |
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