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

Nonlinear Distortion Correlation Aware Power Allocation for Massive MIMO Systems Salman, Murat Babek; Bjornson, Emil; Güvensen, Gökhan Muzaffer; Çiloğlu, Tolga (2024-01-01) This article provides a comprehensive analysis aimed at addressing the impact of power amplifier nonlinearities on massive multiple-input multiple-output (MIMO) communication systems. Specifically, we derive a closed-form ...
Power Angular Spectrum and Spatial Covariance Estimation for Wideband mmWave RIS Channels Ozen, Hakan; Güvensen, Gökhan Muzaffer (2024-01-01) In this study, we propose a method for estimating cascaded channel covariance matrices (C-CCMs) for millimeterwave (mmWave) reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) syste...
Sensing and Mitigation of Far-Field Self-Interference for Full-Duplex MIMO Systems Kurt, Anıl; Güvensen, Gökhan Muzaffer (2024-01-01) This paper aims to investigate the isolated effect of the far-field self-interference (SI) for full-duplex MIMO communications. It is shown that the far-field SI is effective only when the scatterers are close to the users...
A Reduced Complexity Generic NOMA MAP Receiver for Wideband MIMO Channels Satana, Hasan A.; Güvensen, Gökhan Muzaffer (2024-01-01) Multiple input and multiple output (MIMO) technology and non-orthogonal multiple access (NOMA) are crucial methods for future wireless systems as they provide many advantages over conventional systems. Power domain NOMA me...
Beam-Squint-Aware Channel Estimation for Dual-Wideband UPA-type RIS-Aided Massive MIMO Ozen, Hakan; Yılmaz, Osman; Güvensen, Gökhan Muzaffer (2024-01-01) This letter presents a novel beam-squint-aware (BSA) channel estimation method for uniform planar array (UPA)-type reconfigurable intelligent surface (RIS)-aided frequency- and spatial-wideband (dual-wideband) massive mult...
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 (...
Iterative Detection Schemes for Uplink Highly Loaded User-Centric Hybrid Beamforming Based Frequency Selective Massive MIMO Networks Karatas, Metehan; Güvensen, Gökhan Muzaffer (2024-01-01) —In cell-free (CF) networks, access points (APs) jointly serve the user equipments (UEs). In user-centric (UC) variant, only a handful of APs serve a particular UE, namely the ones with the best channels. In this paper, we...
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...
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-...
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...

Citation Formats