Browsing Makale Koleksiyonu by Author "Zegrar, Salah Eddine"
Now showing items 1-8 of 8
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Common CP-OFDM transceiver design for low-complexity frequency domain equalization
Zegrar, Salah Eddine; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)Common cyclic prefix-orthogonal frequency-division multiplexing (CCP-OFDM) groups multiple OFDM symbols and uses one CP to protect them in slow time-variant channels. However, due to this particular design of CCP-OFDM ... -
A comprehensive experimental emulation for OTFS waveform RF-Impairments
Abushattal, Abdelrahman; Zegrar, Salah Eddine; Yazgan, Ayhan; Arslan, Hüseyin (MDPI, 2023)The orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in a high-mobility environment with high time-frequency dispersive channels. Since radio ... -
Delay-doppler-based key generation using OTFS
Solaija, Muhammad Sohaib J.; Zegrar, Salah Eddine; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2023)Key generation for secure communication is challenging in high-mobility scenarios due to the low coherence time. This is further exacerbated in frequency-division duplex systems due to the non-reciprocal wireless channel ... -
Flexible physical layer security for joint data and pilots in future wireless networks
Zegrar, Salah Eddine; Furqan, Haji Muhammad; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)In this work, novel physical layer security (PLS) schemes are proposed for orthogonal frequency-division multiplexing (OFDM) to secure both data and pilots in multiple-input multiple-output (MIMO) systems. The majority of ... -
High range resolution at reduced sampling rates in OFDM systems exploiting pilot aliasing
High range resolution (HRR) is critical for automotive radar where it is directly dependent on the available transmission bandwidth. However, HRR sensing for OFDM entails high sampling frequencies, which extends the system's ... -
A novel cyclic prefix configuration for enhanced reliability and spectral efficiency in OTFS systems
Zegrar, Salah Eddine; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc., 2023)In practical transmission, orthogonal time-frequency-space (OTFS) is implemented using different prefix configurations including reduced-cyclic prefix (RCP) and full-CP (FCP). This letter presents a novel OTFS structure, ... -
A novel delay-doppler-based channel estimation method in doubly-dispersive ocdm systems
Zegrar, Salah Eddine; Arslan, Hüseyin (2024)Orthogonal chirp division multiplexing (OCDM) has recently emerged as a new candidate for the 6G waveform. In high-mobility wireless channels, the inseparability of the data symbols in both time and frequency domains makes ... -
Precoding based cross-tier interference mitigation in centralized-RAN
Zegrar, Salah Eddine; Duranay, Ahmet Enes; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc, 2021)This letter considers a two-tier downlink interference problem as a case of study, where macrocell user equipment (UE) shares the same frequency band with femtocell UE and suffers from severe cross-tier interference. Power ...