论文标题
高迁移率的单一编码的单载波波形：检测和通道估计
Unitary-Precoded Single-Carrier Waveforms for High Mobility: Detection and Channel Estimation
论文作者
论文摘要
本文介绍了基于时域单一基础函数的信息符号的多重信息符号，列出了统一编码的单载波（USC）调制为波形系列。这些基础函数的共同属性是它们跨越了整个时间和频率平面。最近提出的基于离散的傅立叶变换（DFT）和Walsh Hadamard Transform（WHT）的正交时间频率空间（OTF）和正交时间序列多路复用（OTSM），分别落在USC波形的一般框架中。在这项工作中，我们提出适用于任何USC波形的通道估计和检测方法，并在数值上表明单位预码的任何选择都会导致相同的错误性能。最后，我们实施了一些USC系统，并使用SDR平台在实时室内设置中与OFDM进行了比较。
This paper presents unitary-precoded single-carrier (USC) modulation as a family of waveforms based on multiplexing the information symbols on time domain unitary basis functions. The common property of these basis functions is that they span the entire time and frequency plane. The recently proposed orthogonal time frequency space (OTFS) and orthogonal time sequency multiplexing (OTSM) based on discrete Fourier transform (DFT) and Walsh Hadamard transform (WHT), respectively, fall in the general framework of USC waveforms. In this work, we present channel estimation and detection methods that work for any USC waveform and numerically show that any choice of unitary precoding results in the same error performance. Lastly, we implement some USC systems and compare their performance with OFDM in a real-time indoor setting using an SDR platform.
