| 基于不同载波干涉编码OFDM性能分析 |
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| 引用本文： | 吴丽巧,侯嘉.基于不同载波干涉编码OFDM性能分析[J].通信技术,2011,44(1):8-10. |
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| 作者姓名： | 吴丽巧 侯嘉 |
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| 作者单位： | 苏州大学,电子信息学院,江苏,苏州,215006 |
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| 摘 要： | 在载波干涉编码正交频分复用（CI/OFDM）系统中采用了几种CDMA扩频序列作为载波干涉码。并比较了用不同载波干涉编码的正交频分复用（OFDM）系统性能。从理论分析和Matlab实验仿真得出CI/OFDM系统的比特误码率（BER）随着子载波数目增加而变低,BER与采用不同的载波干涉（CI）编码无关。并证明CI/OFDM系统的峰均比（PAPR）主要取决于子载波数的大小以及CI码的性质。
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| 关 键 词： | 正交频分复用 峰均值功率比 载波干涉编码正交频分复用 扩频序列 |
Performance Analysis of OFDM via Different Carrier Interferometry Spreading Codes |
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| WU Li-qiao,HOU Jia.Performance Analysis of OFDM via Different Carrier Interferometry Spreading Codes[J].Communications Technology,2011,44(1):8-10. |
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| Authors: | WU Li-qiao HOU Jia |
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| Affiliation: | (School of Electronic Information,Soochow University,Suzhou Jiangsu 215006,China) |
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| Abstract: | Several CDMA spreading sequences are applied to Carrier Interferometry（CI） OFDM（orthogonal frequency division multiplexing）.The performances of different CI spreading codes in OFDM are compared.The theoretical analysis and Matlab simulation indicate that BER gradually diminishes with the increase of subcarriers and is nothing to do with CI spreading codes.Moreover,PAPR（Peak-to-Average Power Ratio） is determined by the autocorrelation and cross-correlation of each CI spreading code and invariant to signal sequences. |
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| Keywords: | OFDM PAPR CI-OFDM spreading sequence |
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