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 …

Orthogonal Frequency Division Multiplexing (OFDM) has been the waveform of choice for
most wireless communications systems in the past 25 years. This book addresses the “what …

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 …

The orthogonal-time-frequency-space (OTFS) modulation has emerged as a promising
modulation scheme for high mobility wireless communications. To harvest the time and …

This paper considers a challenging communication scenario, in which users have
heterogenous mobility profiles, eg, some users are moving at high speeds and some users …

The recent emergence of orthogonal time frequency space (OTFS) modulation as a novel
PHY-layer mechanism is more suitable in high-mobility wireless communication scenarios …

The orthogonal time frequency space (OTFS) modulation has emerged as a promising
modulation scheme for high mobility wireless communications. To enable efficient OTFS …

This paper studies a downlink system that combines orthogonal-time-frequency-space
(OTFS) modulation and sparse code multiple access (SCMA) to support massive …

This paper proposes orthogonal time sequency multiplexing (OTSM), a novel single carrier
modulation scheme that places information symbols in the delay-sequency domain followed …