论文标题
无线通信的正交时间频率空间（OTFS）调制
Orthogonal Time Frequency Space (OTFS) Modulation for Wireless Communications
论文作者
论文摘要
正交时间频率空间（OTFS）调制是一种最近提出的多载波传输方案，该方案在延迟多普勒（DD）域中而不是传统的时频（TF）域中创新地多连接信息符号。 DD域符号多路复用导致DD域信息符号与DD域通道响应之间的直接相互作用，这些符号通常是准静态的，紧凑的，可分开的，并且可能稀疏。因此，OTFS调制比传统的正交频划分多路复用（OFDM）调制具有吸引力的优势。在本文中，我们研究了无线通信的OTFS调制的相关主题，特别关注其信号检测，性能分析和应用。这些重要方面是根据对最新技术的综述以及从离散Zak变换（DZT）对OTFS调制的详细推导进行讨论的。最后，还提供了关于OTFS调制的未来研究方向的摘要。
Orthogonal time frequency space (OTFS) modulation is a recently proposed multi-carrier transmission scheme, which innovatively multiplexes the information symbols in the delay-Doppler (DD) domain instead of the conventional time-frequency (TF) domain. The DD domain symbol multiplexing gives rise to a direct interaction between the DD domain information symbols and DD domain channel responses, which are usually quasi-static, compact, separable, and potentially sparse. Therefore, OTFS modulation enjoys appealing advantages over the conventional orthogonal frequency-division multiplexing (OFDM) modulation for wireless communications. In this thesis, we investigate the related subjects of OTFS modulation for wireless communications, specifically focusing on its signal detection, performance analysis, and applications. These important aspects are discussed based on the review of the state-of-the-art and a detailed derivation of OTFS modulation from the discrete Zak transform (DZT). Finally, a summary of future research directions on OTFS modulation are also provided.
