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Toplam kayıt 121, listelenen: 91-100
Energy-efficient resource allocation for 5G cognitive radio NOMA using game theory
(IEEE - Institute of Electrical and Electronics Engineers, Inc, 2021)
Cognitive radio non-orthogonal multiple access (CR-NOMA) networks promise improved spectrum utilization and capacity in 5G networks. In this work, we aim to investigate efficient power allocation for the secondary users ...
Reconfigurable intelligent surface (RIS): Eigenvalue decomposition-based separate channel estimation
(Institute of Electrical and Electronics Engineers Inc., 2021)
Reconfigurable intelligent surface (RIS) has recently drawn significant attention in wireless communication technologies. However, identifying, modeling, and estimating the RIS channel in multiple-input multiple-output ...
Joint estimation of multiple RF impairments using deep multi-task learning
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)
Radio-frequency (RF) front-end forms a critical part of any radio system, defining its cost as well as communication performance. However, these components frequently exhibit non-ideal behavior, referred to as impairments, ...
Cyclic Prefix (CP) jamming against eavesdropping relays in OFDM systems
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)
Cooperative communication has been widely used to provide spatial diversity benefits for low-end user equipments, especially in ad hoc and wireless sensor networks. However, the lack of strong authentication mechanisms in ...
Physical layer security for visible light communication in the presence of ISI and NLoS
(Institute of Electrical and Electronics Engineers Inc., 2022)
Visible light communication (VLC) is an important alternative and/or complementary technology for next generation indoor wireless broadband communication systems. In order to ensure data security for VLC in public areas, ...
Heuristic inspired precoding for millimeter-wave MIMO systems with lens antenna subarrays
(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 ...
On the performance of handover mechanisms for non-terrestrial networks
(Institute of Electrical and Electronics Engineers Inc., 2022)
Next-generation wireless networks require massive connectivity and ubiquitous coverage, for which non-terrestrial networks (NTNs) are a promising enabler. However, NTNs, especially non-geostationary satellites bring about ...
Secure key exchange and transmission design using artificial noise ınjection in OFDM systems
(Institute of Electrical and Electronics Engineers Inc., 2022)
Orthogonal frequency division multiplexing (OFDM) is such a vital waveform scheme that is utilized in fifth-generation (5G) communication systems as well as the previous one. Since the usage scenarios of 5G are quite wide, ...
Channel-dependent code allocation for downlink MC-CDMA system aided physical layer security
(Institute of Electrical and Electronics Engineers Inc., 2022)
Spreading codes are the core of the spread spectrum transmission. In this paper, a novel channel-dependent code allocation procedure for enhancing security in multi-carrier code division multiple access (MC-CDMA) system ...
Dynamic-structure resource block allocation based scheduling for 5G systems
(Institute of Electrical and Electronics Engineers Inc., 2022)
We propose an efficient radio resource scheduling (RRS) approach based on the existing dynamic resource block structure (D-RBS). The proposed RRS is more responsive to variations in traffic demand. More specifically, ...