Experimental emulation for OTFS waveform RF-impairments

no code implementations • 17 Jun 2022 • Abdelrahman Abushattal, Salah Eddine Zegrar, Ayhan Yazgan, Huseyin Arslan

Orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in the high-mobility environment with high time-frequency dispersive channels.

Effect of Prefix/Suffix Configurations on OTFS Systems with Rectangular Waveforms

no code implementations • 30 May 2022 • Salah Eddine Zegrar, Hüseyin Arslan

Recently, orthogonal time-frequency-space (OTFS) modulation is used as a promising candidate waveform for high mobility communication scenarios.

Flexible Physical Layer Security for Joint Data and Pilots in Future Wireless Networks

no code implementations • 22 Oct 2021 • Salah Eddine Zegrar, Haji M. Furqan, Huseyin Arslan

In this work, novel physical layer security (PLS) schemes are proposed for orthogonal frequency-division multiplexing (OFDM) to secure both data and pilots.

Reconfigurable intelligent surface (RIS): Eigenvalue Decomposition-Based Separate Channel Estimation

no code implementations • 12 Oct 2020 • Salah Eddine Zegrar, Liza Afeef, Huseyin Arslan

Reconfigurable intelligent surface (RIS) has recently drawn significant attention in wireless communication technologies.

A General Framework for RIS-Aided mmWave Communication Networks: Channel Estimation and Mobile User Tracking

no code implementations • 2 Sep 2020 • Salah Eddine Zegrar, Liza Afeef, Huseyin Arslan

However, channel estimation in RIS-aided communication is still a major concern due to the passive nature of RIS elements, and estimation overhead that arises with multiple-input multiple-output (MIMO) system.