7 papers
Synchronization and Channel Estimation of OTFS with RF Impairments
Sanoopkumar P. S., Mohsen Bayat, Stephen McWade +1
Orthogonal Time Frequency Space (OTFS) modulation is a promising waveform for future wireless networks. However, its resilience to RF impairments remains relatively understudied. L…
Time and Frequency Synchronization for Multiuser OTFS in Uplink
Mohsen Bayat, Sanoopkumar P. S., Arman Farhang
In this paper, we propose time and frequency synchronization techniques for uplink multiuser OTFS (MU-OTFS) systems in high-mobility scenarios. This work focuses on accurately esti…
Delay-Doppler Multiplexing With Global Filtering
Jialiang Zhu, Mohsen Bayat, Arman Farhang
This paper proposes a novel modulation technique called globally filtered orthogonal time frequency space (GF-OTFS) which integrates single-carrier frequency division multiple acce…
Synchronization for Multiuser Uplink OTFS
Mohsen Bayat, Sanoopkumar P. S., Arman Farhang
In this paper, we propose time and frequency synchronization techniques for the uplink of multiuser orthogonal time frequency space (MU-OTFS) in high-mobility scenarios. We introdu…
SC-FDMA as a Delay-Doppler Domain Modulation Technique
Arman Farhang, Mohsen Bayat
This paper compares orthogonal time frequency space (OTFS) modulation and single-carrier frequency division multiple access (SC-FDMA). It shows that these are equivalent except for…
A Unified Framework for Pulse-Shaping on Delay-Doppler Plane
Mohsen Bayat, Arman Farhang
Delay-Doppler multiplexing has recently stirred a great deal of attention in research community. While multiple studies have investigated pulse-shaping aspects of this technology,…
A Generalized Framework for Pulse-Shaping on Delay-Doppler Plane
Mohsen Bayat, Arman Farhang
The primary objective of this paper is to establish a generalized framework for pulse-shaping on the delay-Doppler plane. To this end, we classify delay-Doppler pulse-shaping techn…