3 papers
eess.SP2026
Comparison of OTFS and OFDM for RIS-aided Systems in the Presence of Phase Noise
Stephen McWade, Arman Farhang
In this paper, we investigate the performance of RIS-aided orthogonal time frequency space (OTFS) and orthogonal frequency division multiplexing (OFDM) systems in the presence of o…
eess.SP2025
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…
eess.SP2025
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…