Faster-Than-Nyquist Signaling
Faster-Than-Nyquist Signaling
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DOI：
10.1109/jproc.2012.2233451
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发表时间：
2013-08-01
影响因子：
20.6
通讯作者：
Owall, Viktor
中科院分区：
文献类型：
--
作者：
Anderson, John B.;Rusek, Fredrik;Owall, Viktor
在本文中，我们研究了比奈奎斯特（FTN）更快的信号，这是普通线性调制的扩展，其中通常的数据承载脉冲只是发送得更快，因此不再是正交的。这种创新不仅没有缺点，而且在相同的比特能量、频谱和错误率下，传输的比特量是普通调制的两倍。该方法直接适用于正交频分复用（OFDM）和正交调幅（QAM）信令。给出了若干实际系统的性能结果。FTN信令在通信理论和实践中提出了许多基本问题。信号的香农容量要高得多。
In this paper, we survey faster-than-Nyquist (FTN) signaling, an extension of ordinary linear modulation in which the usual data bearing pulses are simply sent faster, and consequently are no longer orthogonal. Far from a disadvantage, this innovation can transmit up to twice the bits as ordinary modulation at the same bit energy, spectrum, and error rate. The method is directly applicable to orthogonal frequency division multiplex (OFDM) and quadrature amplitude modulation (QAM) signaling. Performance results for a number of practical systems are presented. FTN signaling raises a number of basic issues in communication theory and practice. The Shannon capacity of the signals is considerably higher.