| 基于指数相关矩阵的MIMO-OFDM系统容量 |
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| 引用本文： | 王军选,卢光跃.基于指数相关矩阵的MIMO-OFDM系统容量[J].通信技术,2010,43(4):75-77. |
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| 作者姓名： | 王军选 卢光跃 |
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| 作者单位： | 西安邮电学院通信工程系,陕西,西安,710121 |
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| 基金项目： | 陕西省自然科学基金(NO:2007F02)支持，国家自然科学基金( |
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| 摘 要： | 对收、发端的天线相关为指数相关矩阵的多径衰落信道的MIMO-OFDM系统的信道容量进行了研究。分别对收端和发端的相关矩阵进行SVD分解,主要分析了相关矩阵中的相关系数和多径衰落的路径数量2个参数对对系统容量的影响,并进行了相应的蒙特卡罗仿真。最终的仿真结果表明：在大信噪比的情况下,随着相关系数的增加信道容量下降明显;在总功率受限时,容量随着路径的增加明显增加。
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| 关 键 词： | 信道容量 指数相关矩阵 多入多出正交频分 |
Capacity of MIMO-OFDM System Based on Exponential Correlation Matrix |
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| WANG Jun-xuan,LU Guang-yue.Capacity of MIMO-OFDM System Based on Exponential Correlation Matrix[J].Communications Technology,2010,43(4):75-77. |
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| Authors: | WANG Jun-xuan LU Guang-yue |
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| Affiliation: | WANG Jun-xuan,LU Guang-yue (Xi\'an Institute of Posts , Telecommuniactions,Xi\'an Shaanxi 710121,China) |
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| Abstract: | Capacity of MIMO-OFDM system with exponential correlation matrix and multi-path channel is studied.Based on SVD,the effect of correlation coefficient and multi-path number are analyzed.The Monte-Carlo simulation results indicate that the capacity of MIMO-OFDM system,in large SNR,would decrease obviously as the correlation coefficient increases,and it would increase with the increase of multi-path number at the limited total-power situation. |
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| Keywords: | channel capacity exponential correlation matrix MIMO-OFDM |
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