22 citations · 44 across the 7 of their papers we have counts for
7 papers
HAP-Centric Flying Ad-Hoc Networks With Cell-Free Non-Terrestrial Connectivity
Muhammet Kırık, Liza Afeef, Halim Yanikomeroglu +1
High-altitude platforms (HAPs) are key enablers of next-generation non-terrestrial networks (NTNs), offering wide coverage, long endurance, and rapid deployment. Despite these adva…
Polarization-Aware Antenna Selection for Joint Radar and Communication in XL-MIMO Systems
Ahmed Naeem, Liza Afeef, Huseyin Arslan
A key challenge in dual-polarized multiplexing for joint radar and communication (JRC) systems is cross-polarization (cross-pol) leakage caused by depolarization. In conventional M…
A High Altitude Platform-Based 3D Geometrical Channel Model for Beamforming Characterization in Future 6G Flying Ad-Hoc Networks
Muhammet Kirik, Liza Afeef, Huseyin Arslan
Growing requirements of future wireless communication systems, such as high data rates, high reliability, and low latency, make the active usage of Non-Terrestrial Networks (NTN) a…
Novel Transceiver Design in Wideband Massive MIMO for Beam Squint Minimization
Liza Afeef, Abuu B. Kihero, Hüseyin Arslan
When using ultra-wideband (UWB) signaling on massive multiple-input multiple-output (mMIMO) systems, the electromagnetic wave at each array element incurs an extra propagation dela…
Joint Tracking of Multiple Beams in Beamspace MIMO Systems
Liza Afeef, Murat Karabacak, Hüseyin Arslan
In millimeter-wave (mmWave) systems, beamforming is needed to overcome harsh channel environments. As a promising beamforming solution, lens antenna array (LAA) implementation can…
Reconfigurable intelligent surface (RIS): Eigenvalue Decomposition-Based Separate Channel Estimation
Salah Eddine Zegrar, Liza Afeef, Huseyin Arslan
Reconfigurable intelligent surface (RIS) has recently drawn significant attention in wireless communication technologies. However, identifying, modeling, and estimating the RIS cha…
A General Framework for RIS-Aided mmWave Communication Networks: Channel Estimation and Mobile User Tracking
Salah Eddine Zegrar, Liza Afeef, Huseyin Arslan
Reconfigurable intelligent surface (RIS) has been widely discussed as new technology to improve wireless communication performance. Based on the unique design of RIS, its elements…