Kurum Yazarı "Afeef, Liza" İçin Listeleme
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Beam squint effect in multi-beam mmWave massive MIMO systems
Afeef, Liza; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)In multicarrier wideband millimeter-wave (mmWave) communications, as the size of antenna array increases, as in massive multiple-input multiple-output (MIMO), an additional propagation delay of the electromagnetic wave at ... -
Beam squint inspired multiple access technique in massive MIMO systems
Kihero, Abuu B.; Afeef, Liza; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)Massive multiple-input multiple-output (mMIMO) systems implementing wideband signaling have been found to suffer from beam squinting problem. In multicarrier systems, beam squint causes spreading of the beam to multiple ... -
Energy and spectral-efficient lens antenna subarray design in MmWave MIMO Systems
Afeef, Liza; Mumcu, Gökhan; Arslan, Hüseyin (IEEE-Institute Electrical Electronics Engineers Inc, 2022)Lens antenna subarray (LAS) is one of the recently introduced technologies for future wireless networks that significantly improves the energy efficiency of multiple-input multiple-output (MIMO) systems while achieving ... -
Heuristic inspired precoding for millimeter-wave MIMO systems with lens antenna subarrays
Çetinkaya, Şinasi; Afeef, Liza; Mumcu, Gökhan; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)A traditional array (TA) multiple-input multiple-output (MIMO) architecture in mmWave with hybrid beamforming suffers from high power consumption and hardware overhead. Therefore, a lens antenna subarray (LAS)-MIMO ... -
A novel transceiver design in wideband massive mimo for beam squint minimization
When using ultra-wideband signaling on massive multiple-input multiple-output (mMIMO) systems, the electromagnetic wave incurs an extra delay (across the array elements) comparable to or larger than the symbol duration, ... -
Physical layer authentication in wireless communication systems
Afeef, Liza; Arslan, Hüseyin (Institution of Engineering and Technology, 2023)... -
Physical layer authentication scheme in beamspace MIMO systems
Afeef, Liza; Furqan, Haji M.; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)The broadcast nature of wireless communication makes it vulnerable to various security threats such as spoofing attacks. Physical layer (PL) authentication has emerged as a promising and powerful approach to secure future ...