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 …

In the 6G era, Space-Air-Ground Integrated Network (SAGIN) are anticipated to deliver
global coverage, necessitating support for a diverse array of emerging applications in high …

This paper proposes an off-grid channel estimation scheme for orthogonal time-frequency
space (OTFS) systems adopting the sparse Bayesian learning (SBL) framework. To avoid …

Recently proposed orthogonal time frequency space (OTFS) modulation has been
considered as a promising candidate for accommodating various emerging communication …

Terahertz (THz) integrated sensing and communication (ISAC) is a promising
interdisciplinary technology that realizes simultaneously transmitting Terabit-per-second …

High mobility environment leads to severe Doppler effects and poses serious challenges to
the conventional physical layer based on the widely popular orthogonal frequency division …

In this article, we study the uplink transmission scheme and channel estimation design for
reconfigurable intelligent surfaces (RIS)-aided orthogonal time–frequency space (OTFS) …

Orthogonal time-frequency space (OTFS) is a promising technique for high mobility wireless
communications, as it approaches a sparse representation of doubly-selective fading …

Next generation cellular network is expected to provide the simultaneous high-accuracy
localization and ultra-reliable communication services, even in high mobility scenarios. To …

We propose a low-complexity channel estimation method for Orthogonal Time Frequency
Space (OTFS) modulation based systems. Two important aspects of OTFS modulation …