| MIMO-OFDM通信系统研究 |
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| 引用本文： | 张建华,韩琳.MIMO-OFDM通信系统研究[J].科技广场,2009(1). |
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| 作者姓名： | 张建华 韩琳 |
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| 作者单位： | 河南工业大学信息科学与工程学院,河南,郑州,450001 |
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| 摘 要： | 采用多入多出(MIMO)技术可以提高信道容量和信道可靠性,降低误码率.正交频分复用(OFDM)是一种特殊的多载波传输方案,各子载波在整个符号周期上正交,各子载波信号子频谱可以互相重叠,提高频带利用率.MIMO-OFDM技术是OFDM与MIMO技术结合形成的一种新技术,该技术是在OFDM传输系统中采用阵列天线实现空间分集,提高了信号质量.本文全面介绍了MIMO技术和OFDM技术及两者的结合,分析实现MIMO-OFDM技术的框架.
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| 关 键 词： | 多入多出 正交频分复用 频谱利用率 频率选择性衰落 |
Research of MIMO-OFDM Communication System |
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| Zhang Jianhua,Han Lin.Research of MIMO-OFDM Communication System[J].Science Mosaic,2009(1). |
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| Authors: | Zhang Jianhua Han Lin |
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| Institution: | College of Information Science and Engineering;Henan University of Technology;Henan Zhengzhou 450001 |
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| Abstract: | MIMO technique is used to improve channel capacity and link reliability as well as to reduce bit error rate. Orthogonal frequency division multiplexing (OFDM) is a special kind of multi-carrier trans- mission scheme.In OFDM system,high spectrum efficiency can be obtained because sub-carriers are orthogonal during the whole symbol period and their spectra overlap.MIMO-OFDM is a new technique that combines MIMO with OFDM.It uses antenna arrays to realize space diversty and to improve the quality of signals.Th... |
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| Keywords: | MIMO OFDM Spectrum Efficiency Frequency Selective Fading |
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