| OFDM系统中干扰消除技术的分析 |
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| 引用本文： | 孔繁庭.OFDM系统中干扰消除技术的分析[J].甘肃联合大学学报(自然科学版),2009,23(6):34-36. |
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| 作者姓名： | 孔繁庭 |
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| 作者单位： | 甘肃联合大学,电子信息工程学院,甘肃,兰州,730000 |
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| 摘 要： | 正交频分复用（OFDM）技术已被越来越多的人所关注，并且在IEEE802．11无线局域网中得到实际应用．在OFDM系统中为了消除符号间干扰（ISI）和子载波间干扰（ICI），一般要采用加入循环前缀（CP）的技术．从信道对信号作用方面分析了循环前缀技术消除干扰的过程，并给出了仿真结果．结果表明，循环前缀的加入可以有效地消除符号间干扰（ISI）和子载波间干扰（ICI）．
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| 关 键 词： | 正交频分复用 循环前缀 信道估计 误码率 |
Analysis on the Technologies of Eliminate Interferences in OFDM System |
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| KONG Fan-ting.Analysis on the Technologies of Eliminate Interferences in OFDM System[J].Journal of Gansu Lianhe University :Natural Sciences,2009,23(6):34-36. |
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| Authors: | KONG Fan-ting |
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| Institution: | KONG Fan-ting(School of Elactronic and Information Engineering,Gansu Lianhe University,Lanzhou 730000,China) |
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| Abstract: | Orthogonal frequency division multiplexing (OFDM) has received more and more attention and has been applied to IEEE 802.11 wireless LAN.Usually a cyclic prefix was applied in OFDM system. In this paper,the process of cyclic prefix to eliminate interferences were analysed by considering the Channel to signal function,its simulation result was also given. The results show that adding the prefix cycle can effectively eliminate inter-symbol interference (ISI) and inter-carrier interference (ICI). |
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| Keywords: | orthogonal frequency division multiplexing (OFDM) cyclic prefix (CP) channel estimation |
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