| 对OFDM和SC-CP中两个问题的分析 |
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| 引用本文： | 刘杨.对OFDM和SC-CP中两个问题的分析[J].计算机与现代化,2006(12):97-100. |
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| 作者姓名： | 刘杨 |
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| 作者单位： | 山东大学信息科学与工程学院,山东,济南,250100 |
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| 摘 要： | OFDM系统中IFFT模块和FFT模块的位置问题和SG-CP系统中时域交织及比特交织对系统性能的影响做了理论分析。仿真结果表明，OFDM系统中的IFFT模块和FFT模块的位置是可以交换的。同时，在SC-CP系统中只使用简单时域交织并不能提高系统性能。但是，如果在编码后比特交织，然后做时域交织是可以提高系统性能的。
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| 关 键 词： | 交织 |
| 文章编号： | 1006-2475（2006）12-0097-04 |
| 收稿时间： | 2006-01-22 |
| 修稿时间： | 2006-01-22 |
Analysis of Two Problems in OFDM and SC-CP |
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| LIU Yang.Analysis of Two Problems in OFDM and SC-CP[J].Computer and Modernization,2006(12):97-100. |
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| Authors: | LIU Yang |
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| Abstract: | This paper discusses two problems existing in OFDM and SC-CP. One problem is that the location interchanging of IFFT and FFT; the other is the effect of the time interleaving and bit interleaving to SC-CP system. From the simulation results, the location of IFFT and FFr can be interchanged. While, only adopting time interleaving cannot improve the system performance. But if time interleaving and bit leaving are combined after channel eoding, the performance can be improved. |
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| Keywords: | OFDM SC-CP IFFT/FFT |
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