论文标题
在60 GHz处测得的V2V通道上OTF的性能评估
Performance Evaluation of OTFS Over Measured V2V Channels at 60 GHz
论文作者
论文摘要
本文将对逼真的车辆通道情况应用于正交时间频率空间（OTFS）调制方案进行分析。 OTFS在延迟多普勒域中调节符号，希望利用这两者的多样性。这样做的惩罚是复杂干扰取消均衡器的要求，因为该域造成了大量的间载波和隔膜间干扰。我们使用测得的毫米波车辆通道进行此分析，并假设典型的物理层设置进行性能分析。我们的结果表明，渠道条件之间易于均衡的渠道条件和通道条件有一个艰巨的权衡，允许OFT利用二维多样性。在第一种情况下，我们观察到良好的整体性能，几乎没有通过使用OTF来提高。在第二个情况下，通过OTF的性能增长是可见的，但总体表现不佳。
This paper presents an analysis of the Orthogonal Time Frequency Space (OTFS) modulation scheme when applied to realistic vehicular channel situations. OTFS modulates symbols in delay-Doppler domain, hoping to exploit diversity in both. The penalty for doing this is the requirement of complex interference cancellation equalizers, as this domain incurs a strong amount of intercarrier and intersymbol interference. We conduct this analysis using measured millimeter wave vehicular channels, and we assume typical physical layer settings for a performance analysis. Our results show that there is a challenging trade-off between channel conditions that are easy to equalize and channel conditions that allow OFTS to exploit the two-dimensional diversity. In the first case we observe a good overall performance that is barely enhanced by employing OTFS. In the second case performance gain through OTFS is visible, yet with a bad overall performance.
