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OFDM系统上行链路同步技术的研究

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摘要 对迅速发展的高速数据传输技术——正交频分复用(OFDM)的原理进行概括性介绍,给出了该系统的优缺点。总结了在不同特征的OFDM通信系统中同步问题的几种解决方案:基于AWGN信道的ML估计、基于发散信道的时移估计、基于多用户OFDM的估计和频率选择性衰落信道的频偏盲估计。最后对上行链路的同步问题进行了进一步地分析,提出了一种基于MAP估计的OFDM系统同步解决方案。
出处 《无线电通信技术》 2003年第3期38-41,共4页 Radio Communications Technology
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参考文献6

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