| 基于分布式天线协同的OFDM粗定时同步方法 |
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| 引用本文： | 卿朝进,唐友喜,查光明. 基于分布式天线协同的OFDM粗定时同步方法[J]. 现代电子技术, 2011, 34(5): 1-4 |
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| 作者姓名： | 卿朝进 唐友喜 查光明 |
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| 作者单位： | 电子科技大学,通信抗干扰技术国家重点实验室,四川成都,611731 |
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| 基金项目： | 国家自然科学基金(60832007,60901018,60902027,60602009); 国家863计划(2009AA01Z236); 国家科技支撑计划(2008BAH30B11); 国家重大科技专项(2009ZX03003-008-01); 中央高校基金(ZYGX2009J010,ZYGX2009J008) |
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| 摘 要： | 在频率选择性衰落信道中,两根分布式接收天线接收来自单天线发射机的发射信号。利用两根分布式接收天线的协同,提出了一种协同的粗定时同步方法。该方法在不增加各分布式接收天线预定虚警概率的情况下,通过两根分布式接收天线的协同,避免了部分漏检情况的发生。分析和仿真结果表明,提出的方法可以改善OFDM系统粗定时同步的正确检测和漏检性能。
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| 关 键 词： | 粗定时同步 分布式天线系统 正交频分复用 协同 |
Coarse Timing Synchronization for OFDM Based on Cooperation of Distributed Antennas |
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| QING Chao-jin,TANG You-xi,CHA Guang-ming. Coarse Timing Synchronization for OFDM Based on Cooperation of Distributed Antennas[J]. Modern Electronic Technique, 2011, 34(5): 1-4 |
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| Authors: | QING Chao-jin TANG You-xi CHA Guang-ming |
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| Affiliation: | QING Chao-jin,TANG You-xi,CHA Guang-ming(National Key Laboratory of Science and Technology on Communication,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | In frequency-selective fading channels,two distributed receive antennas are assumed for receiving the signal transmitted from the transmitter with a single antenna.By using the cooperation between the two distributed receive antennas,a cooperative coarse timing synchronization method is proposed.Without increasing the pre-defined false alarm probability for each distributed receive antenna,some of missed detection can be avoided with the cooperation of the two distributed receive antennas.By the analysis an... |
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| Keywords: | coarse timing synchronization distributed antenna system orthogonal frequency-division multiplexing cooperation |
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