论文标题
正交时间频率空间调制 - 第一部分：未来的基本原理和挑战
Orthogonal Time Frequency Space Modulation -- Part I: Fundamentals and Challenges Ahead
论文作者
论文摘要
这封信是关于正交时间频率空间（OTFS）调制的三部分教程的第一部分，这是未来无线网络的有前途的候选波形。这封信介绍并比较了OTF调制的两个流行实现，即Symbletic有限傅立叶变换（SFFT）和离散的Zak Transform（DZT）基于基于的体系结构。基于这些收发器架构，讨论了OTFS调制的基本概念，包括延迟多普勒（DD）域，DD域信息多路复用及其潜在的好处。最后，突出显示了OTFS调制的挑战。本教程的第二部分和第三部分有关OTFS调制的教程分别集中于收发器设计和集成感应和通信（ISAC）。
This letter is the first part of a three-part tutorial on orthogonal time frequency space (OTFS) modulation, which is a promising candidate waveform for future wireless networks. This letter introduces and compares two popular implementations of OTFS modulation, namely the symplectic finite Fourier transform (SFFT)- and discrete Zak transform (DZT)-based architectures. Based on these transceiver architectures, fundamental concepts of OTFS modulation, including the delay-Doppler (DD) domain, DD domain information multiplexing, and its potential benefits, are discussed. Finally, the challenges ahead for OTFS modulation are highlighted. Parts II and III of this tutorial on OTFS modulation focus on transceiver designs and integrated sensing and communication (ISAC), respectively.
