Improving an OFDM reception using an adaptive Nyquist windowing
Improving an OFDM reception using an adaptive Nyquist windowing
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DOI：
10.1109/30.536046
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发表时间：
1996-08
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影响因子：
--
通讯作者：
C. Muschallik
中科院分区：
文献类型：
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作者：
C. Muschallik
本文解释了如何在时域中的OFDM信号的窗口有助于其改善接收。加窗使用不受多径接收干扰的保护间隔部分。窗口的长度适应于传输条件。该窗口可以用升余弦或满足奈奎斯特准则的其他类型的函数来实现。还将示出实现窗口化以保持FFT复杂度低的简单方法。还应给出窗口化对离散正弦杂散、白色噪声、相位噪声和频率偏差的影响。
This paper explains how a windowing of the OFDMSignal in the time domain contributes to its improved reception. The windowing uses the part of the guard interval that is not disturbed by multipath reception. The length of the window adapts to the transmission conditions. This window may be realized with a raised cosine or other kind of function that fulJills the nyquist criterion. An easy way to implement the windowing keeping the FFT complexity low shall also be shown. The impact of windowing,for discrete sine spurious, white noise, phase noise andpequency deviations shall also be given.