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arXiv 2008.015862020-08-04eess.SPcs.ITmath.IT

Performance Evaluation of OTFS Over Measured V2V Channels at 60 GHz

Thomas Blazek, Danilo Radovic

备注：: Accepted at ICMIM 2020, 4 pages
DOI：: 10.1109/ICMIM48759.2020.9298994

英文摘要：

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.

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