Gökhan Muzaffer Güvensen

E-mail

guvensen@metu.edu.tr

Department

Department of Electrical and Electronics Engineering

ORCID

0000-0002-4406-1249

Scopus Author ID

24724222900

Web of Science Researcher ID

ABA-4208-2020

Reduced Complexity Correlation-Based Multi-Stream DPD for Hybrid Massive MIMO Salman, Murat Babek; Ucuncu, Ali Bulut; Güvensen, Gökhan Muzaffer (2024-01-01) This paper proposes a reduced complexity digital predistortion (DPD) scheme for fully-connected hybrid beamforming systems for massive multiple-input multiple-output (MIMO) channels impaired by nonlinear power amplifiers (...
Low complexity nonlinear detection for multiuser hybrid MIMO systems and performance analysis Salman, Murat Babek; Güvensen, Gökhan Muzaffer; Çiloğlu, Tolga (2023-10-01) This paper proposes an analytical framework and a system of distortion-aware receiver structures for single-carrier uplink hybrid beamforming-based multiple-input-multiple-output (MIMO) channels. Proposed single-user proce...
Robust Statistical Beamforming with Multi-Cluster Tracking for Time-Varying Massive MIMO Kurt, Anıl; Güvensen, Gökhan Muzaffer (2023-01-01) In this paper, a joint design of instantaneous channel estimation, beam tracking, and adaptive beamformer construction for a millimeter-wave massive multiple-input multiple-output (MIMO) system is proposed. This design foc...
A Robust Quantized Beam-Squint and Interference Aware Statistical Beamforming for RIS-Aided Massive MIMO Ozen, Hakan; Güvensen, Gökhan Muzaffer (2023-01-01) This study investigates an interference-aware (IA) and beam-squint-aware (BSA) statistical reconfigurable intelligent surface (RIS) design that considers the practical amplitude-phase coupling for RIS-aided spatial wideban...
Ön-Kodlayici, A Quantized Precoder for MIMO Nicemleme Altinda Çalişan bir MIMO Karabacakoǧlu, Yusuf; Üçüncü, Ali Bulut; Karataş, Firat; Güvensen, Gökhan Muzaffer (2023-01-01) Massive multiple-input multiple-output (MIMO) systems have become popular in both academic and industrial circles due to their ability to improve spectral and energy efficiency. One cost-effective way to implement these sy...
Interference and Beam Squint Aware TTD-aided Beamforming for Dual Wideband Massive MIMO Ozen, Hakan; Güvensen, Gökhan Muzaffer (2023-01-01) This study investigates the design of an interference-aware (IA) and beam-squint-aware (BSA) true-time-delay (TTD)-aided statistical beamformer for spatial-and frequency-wideband (dual wideband) massive multiuser multiple-...
Analytical Nonlinear Distortion Characterization for Frequency-Selective Massive MIMO Channels Salman, Murat Babek; Björnson, Emil; Güvensen, Gökhan Muzaffer; Çiloğlu, Tolga (2023-01-01) Nonlinear distortion stemming from low-cost power amplifiers may severely affect wireless communication performance through out-of-band (OOB) radiation and in-band distortion. The distortion is correlated between different...
An Iterative Distortion-Aware Precoding for Quantized Upsampled Wideband Massive MIMO Karabacakoǧlu, Yusuf; Üçüncü, Ali Bulut; Güvensen, Gökhan Muzaffer (2023-01-01) Massive multiple-input multiple-output (MIMO) systems have received significant attention in academia and industry for their remarkable advantages regarding spectral and energy efficiency. Employing a pair of low-resolutio...
An Adaptive-Iterative Nonlinear Interference Cancellation in Time-Varying Full-Duplex Channels Kurt, Anıl; Salman, Murat Babek; Saraç, Uğur Berkay; Güvensen, Gökhan Muzaffer (2022-01-01) In this paper, first, the sensitivity of traditional Full-Duplex (FD) communication systems to time variation in the self-interference (SI) channel is demonstrated via performance analysis. It is seen that conventional sch...
An Efficient QAM Detector via Nonlinear Post-Distortion Based on FDE Bank Under PA Impairments Salman, Murat Babek; Güvensen, Gökhan Muzaffer (2021-10-01) In this paper, we propose a receiver structure for single-carrier uplink transmission with frequency domain equalization (FDE) that is exposed to power amplifier (PA) nonlinearities. A two-stage approach is adopted, in whi...

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