Yazar "Özdemir, Mehmet Kemal" için Bildiri Koleksiyonu listeleme
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Fm channel model development and its emulator
Mohammed, Ahmed Hossam; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2018)With the widespread availability of Internet, voice only broadcast in the FM Band will soon be abandoned as Internet Radio can provide the same content with no boundaries. The available band can then be exploited for ... -
Identification of the number of wireless channel taps using deep neural networks
Jaradat, Ahmad M.; Elgammal, Khaled Walid; Özdemir, Mehmet Kemal; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2021)In wireless communication systems, identifying the number of channel taps offers an enhanced estimation of the channel impulse response (CIR). In this work, efficient identification of the number of wireless channel taps ... -
Joint overlap ratios and power allocation with user fairness in partial non-orthogonal multiple access (P-NOMA)
Thet, Nann Win Moe; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2020)In power-domain non-orthogonal multiple access (NOMA), since many users are able to utilize a single frequency subcarrier with different power levels, user interference occurs if successive interference cancellation (SIC) ... -
Low-complexity deep learning-based beamforming in MISO systems
Thet, Nann Win Moe; Elgammal, Khaled Walid; Ateş, Hasan Fehmi; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2021)This study proposes a low-complexity deep learning-based beamforming neural network (BFNN) for massive multiple-input single-output (MISO) systems. We adopt an unsupervised learning-based convolutional neural network (CNN) ... -
Mutual coupling compensation in receiving antenna arrays
Khan, Sana; Sajjad, Hassan; Özdemir, Mehmet Kemal; Arvas, Ercüment (Institute of Electrical and Electronics Engineers Inc., 2020)Mutual coupling compensation in uniform linear and circular receiving antenna arrays of thin wire dipoles is presented. It was observed that the mutual impedance is independent of the incident angle and depends solely on ... -
Mutual coupling compensation in receiving arrays and its implementation on software defined radios
Khan, Sana; Sajjad, Hassan; Özdemir, Mehmet Kemal; Arvas, Ercüment (Institute of Electrical and Electronics Engineers Inc., 2020)Mutual coupling is compensated in a four element uniform linear receiving array using software defined radios. Direction of arrival (DoA) is estimated in real-time for the array with spacing d=lambda/4. The decoupling ... -
Performance analysis of user scheduling in massive MIMO with fast moving users
Thet, Nann Win Moe; Baykaş, Tuncer; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2019)This paper analyzes the effect of fast fading Doppler channel on user scheduling algorithms. Considering a millimeter wave (mmWave) downlink massive multiple-input multiple-output (M-MIMO) system, we adopt a two-stage ... -
Reduced-rank joint estimation of DOA with mutual coupling
Thet, Nann Win Moe; Özdemir, Mehmet Kemal; Kachroo, Amit (Institute of Electrical and Electronics Engineers Inc., 2018)In this paper, an extended reduced-rank direction-of-arrival (DOA) estimation with unknown mutual coupling in uniform linear array (ULA) structure is presented. The proposed method is based on the joint iterative subspace ... -
Signal of opportunity based TDOA positioning using analog TV signals
Elgammal, Khaled Walid; Turan, Berke Can; Bedir, Oğuz; Çelebi, Hasari; Özdemir, Mehmet Kemal (IEEE Computer Society, 2023)The ability to self-localize is an essential requirement for many systems. Mostly, this is accomplished by using a Global Positioning System (GPS) receiver. However, in some situations, the GPS receiver is disabled by ...