矫形时时频空间调整 -- -- 第三部分:ISAC和潜在应用 (Orthogonal Time Frequency Space Modulation -- Part III: ISAC and Potential Applications)

The first two parts of this tutorial on orthogonal time frequency space (OTFS) modulation have discussed the fundamentals of delay-Doppler (DD) domain communications as well as some advanced technologies for transceiver design. In this letter, we will present an OTFS-based integrated sensing and communications (ISAC) system, which is regarded as an enabling technology in next generation wireless communications. In particular, we illustrate the sensing as well as the communication models for OTFS-ISAC systems. Next, we show that benefiting from time-invariant DD channels, the sensing parameters can be used for inferring the communication channels, leading to an efficient transmission scheme. As both functionalities are realized in the same DD domain, we briefly discuss several promising benefits of OTFS-based ISAC systems, which have not been completely unveiled yet. Finally, a range of potential applications of OTFS for the future wireless networks will be highlighted.

翻译：关于正交时间频率空间(OTFS)调制的这前两部分讨论了延迟-多普勒域通信的基本原理以及一些用于收发机设计的先进技术。在本信中,我们将介绍一个基于OTFS的综合遥感和通信系统(ISAC),该系统被视为下一代无线通信的一种赋能技术。特别是,我们举例说明了OTFS-ISAC系统的遥感和通信模式。接下来,我们表明,利用时间变化的DD渠道,遥感参数可用于推断通信渠道,从而形成一个高效的传输计划。由于这两个功能都是在同一个DD领域实现的,我们简要讨论了基于OTFS的ISAC系统(ISAC系统)的一些大有希望的好处,这些好处尚未完全公布。最后,将突出OTFS对未来无线网络的潜在应用范围。