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Toplam kayıt 206, listelenen: 49-68
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Dual band (28/38 GHz) antenna design for 5G mmWave communication networks
(Institute of Electrical and Electronics Engineers Inc., 2023)The goal of the 5G millimeter-wave (mmWave) technology is to outperform the earlier wireless technology generations in terms of data throughput, latency, and connection reliability. It has the potential to revolutionize ... -
Dual camera based high spatio-temporal resolution video generation for wide area surveillance
(Institute of Electrical and Electronics Engineers Inc., 2022)Wide area surveillance (WAS) requires high spatiotemporal resolution (HSTR) video for better precision. As an alternative to expensive WAS systems, low-cost hybrid imaging systems can be used. This paper presents the usage ... -
Dynamic range and depth of field extension using camera array
(Institute of Electrical and Electronics Engineers Inc., 2022)Computational imaging aims to extend the capabilities of conventional imaging systems by extracting richer and more meaningful information through multiple captures or by modifying the camera’s sensors and optics. In ... -
Dynamic utilization of low-Altitude platforms in aerial heterogeneous cellular networks
(IEEE, 2017)Aerial telecommunication platforms provide a promising solution to meet surging traffic demands as a component of future communication networks. They can be used as aerial base stations (ABSs) to build an aerial heterogeneous ... -
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, ... -
Efficient power allocation for cognitive radio NOMA using game-theoretic based pricing strategy
(Institute of Electrical and Electronics Engineers Inc., 2021)Cognitive radio-based non-orthogonal multiple access (CR-NOMA) is considered to be one of the promising multiple accessing technique candidates for 5G and beyond networks. These networks are facing a lot of challenges to ... -
Efficient power allocation for MIMO CR-NOMA networks
(Institute of Electrical and Electronics Engineers Inc., 2021)Cognitive radio-based non-orthogonal multiple access (CR-NOMA) is considered to be one of the promising multiple accessing technique candidates for 5G and beyond networks. These networks are facing a lot of challenges to ... -
An efficient security method based on exploiting channel state information (CSI)
(Institute of Electrical and Electronics Engineers Inc., 2017)A channel amplitude quantization method that can effectively quantize the channel response using just one single threshold value is proposed in order to extract a random manipulating sequence with good secrecy properties. ... -
Efficient spectral access in distributed cooperative cognitive radio networks
(Institute of Electrical and Electronics Engineers Inc., 2021)The cognitive users (CUs) in the cooperative communication may serve as relay nodes for conveying the signal received from the primary users (PUs) to their destinations, provided that both the PUs and the CUs minimum rate ... -
Enablers for efficient wi-fi sensing
(2023)Wireless fidelity (Wi-Fi) technology gained popularity due to its ability to provide reliable connectivity, enabling high-speed communication and information sharing. However, in recent years, the focus has shifted from ... -
Energy and spectral efficiency tradeoff in NOMA: Multi-objective evolutionary approaches
(Institute of Electrical and Electronics Engineers Inc., 2020)Non-orthogonal multiple access (NOMA) deployment in future wireless networks has been recently considered a promising radio access technology to enhance spectral efficiency (SE). However, gain in SE comes always with the ... -
Energy aware wireless system based software defined radio
(Institute of Electrical and Electronics Engineers Inc., 2019)Development of green telecommunication systems is already being considered highly attractive by standard bodies and recently is attracting research attention. While most of the research focuses on modeling and simulation, ... -
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 ... -
Enhancing physical layer security of OFDM systems using channel shortening
(Institute of Electrical and Electronics Engineers Inc., 2017)This work presents a simple, spectral and power efficient scheme for providing secure OFDM communication system using channel shortening. The basic concept is to utilize a channel shortening technique, whose design is based ... -
Enhancing physical-layer security in wireless communications using signal space diversity
(Institute of Electrical and Electronics Engineers Inc., 2016)In this paper, we enhance the security of OFDM systems in frequency selective fading channels using signal space diversity. In rich multipath environments, spatially separated channels are independent to each other. Hence, ... -
Enhancing the security performance of ostbc using pre-equalicodization
(Institute of Electrical and Electronics Engineers Inc., 2017)In this study, we first quantify the secrecy performance achieved by employing precoded orthogonal space time block coding (POSTBC) in order to use it as a benchmark for comparison purposes with a new proposed security ... -
Estimating multi-dimensional sparsity level for spectrum sensing
(Institute of Electrical and Electronics Engineers Inc., 2023)Identifying spectrum opportunities is a crucial element of efficient spectrum utilization for future wireless networks. Spectrum sensing offers a convenient means for revealing such opportunities. Studies showed that usage ... -
Estimation and exploitation of multidimensional sparsity for MIMO-OFDM channel estimation
(Institute of Electrical and Electronics Engineers Inc., 2022)Obtaining accurate channel state estimates at reasonable training overheads remains a big challenge for the applicability of multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM). Recently, ... -
A European view on the next generation optical wireless communication standard
(Institute of Electrical and Electronics Engineers, 2015)Optical wireless technology uses light for mobile communications. The idea is to simultaneously combine the illumination provided by modern high-power light-emitting diodes (LEDs) with high-speed wireless communications. ... -
The evaluation of FFR for interference management in coordinated hybrid terrestrial-aerial network
(Institute of Electrical and Electronics Engineers Inc., 2019)Recent works have tried to incorporate unmanned aerial vehicle (UAV) base stations in conventional networks, however, the inter-cell interference mitigation techniques for such networks have not been studied comprehensively. ...