| 基于SC-SFBC系统的载波频偏补偿 |
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| 引用本文： | 刘海涛,代琳.基于SC-SFBC系统的载波频偏补偿[J].通信技术,2011,44(12):36-38,41. |
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| 作者姓名： | 刘海涛 代琳 |
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| 作者单位： | 中国民航大学天津市智能信号与图像处理重点实验室,天津,300300 |
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| 摘 要： | 单载波频分多址( SC-FDMA)系统由于其低峰均比特性,广泛受到人们的关注.为了有效的增加发射分集但又不破坏其低峰均比特性,一种新型的空频编码方案即单载波空频块编码( SC-SFBC)被发现.针对单载波空频块编码系统中,发射机与接收机之间存在载波频偏( CFO)降低链路传输可靠性问题,建立接收信号模型,提出一种迭代载波频偏补偿方法.提出的算法通过分离子载波间干扰( ICI)并迭代消除,同时每个子载波独立进行频偏补偿与均衡,降低算法复杂度.仿真结果表明这种算法能显著提高存在载波频偏时的SC-SFBC系统性能.
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| 关 键 词： | 单载波空频块编码 载波间干扰 载波频偏 |
Carrier Frequency Offset Compensation based on SC-SFBC System |
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| LIU Hai-tao
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DAI Lin.Carrier Frequency Offset Compensation based on SC-SFBC System[J].Communications Technology,2011,44(12):36-38,41. |
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| Authors: | LIU Hai-tao DAI Lin |
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| Affiliation: | LIU Hai-tao,DAI Lin(Tianjin Key Lab for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China) |
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| Abstract: | SC-FDMA(Single Carrier Frequency Division Multiple Access),for its lower PAPR(Peak to Average Power Ratio),attracts much attention from the people.In order to increase the effective transmit diversity and destroy no low-PAPR,a novel space-frequency coding scheme called SC-SFBC(single-carrier space-frequency block coding) is proposed.The transmission reliability of the SC-SFBC system is reduced because of carrier frequency offset(CFO) between transmitter and receiver.Thus the receiving signal model with CFO ... |
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| Keywords: | SC-SFBC ICI CFO |
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