The Internet of Things (IoT) is envisioned to connect everything, spanning from terrestrial to
nonterrestrial terminals, where reliable communication is expected to be allowed in both …

High-speed mobility communication is one of the challenging scenarios because of the
rapidly changing channel involved. In light of this, the orthogonal time–frequency space …

This paper considers the joint channel estimation and device activity detection in the grant-
free random access systems, where a large number of Internet-of-Things devices intend to …

Orthogonal time frequency space (OTFS) system constitutes an effective structure conceived
for efficiently utilizing the channel information, which is capable of achieving a promising …

随着各类通信业务的快速发展以及新型应用需求的不断出现ꎬ 用户应用对网络覆盖,
数据传输速率及端到端时延提出更高要求ꎮ 第6 代(sixth generationꎬ 6G) 移动通信系统将满足 …

Orthogonal time frequency space (OTFS) modulation shows significant advantages over
orthogonal frequency division multiplexing (OFDM), specially in environments with high …

Orthogonal time frequency space (OTFS) modulation has been proven to be superior to
traditional orthogonal frequency division multiplexing (OFDM) systems in high-speed …

The internet of things (IoT) has been widely considered to be integrated with high-speed
railways to improve safety and service. It is important to achieve reliable communication in …

正交时频空(orthogonal time frequency space, OTFS) 技术是近年来出现的一种新型多载波
调制技术. 在OTFS 技术中, 数据信号在时延—多普勒域产生, 经过逆偶有限傅里叶变换实现信号 …

Orthogonal time frequency space (OTFS) modulation is a promising technique for efficient
data transmission in wireless communication systems, particularly in high-mobility …