Browsing Bildiri Koleksiyonu by Access Type "info:eu-repo/semantics/embargoedAccess"
Now showing items 1-20 of 124
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2D CMUT array based ultrasonic micromanipulation platform
(IEEE Computer Society, 2016)In this paper, we designed and simulated a multilayer planar resonator with target frequency of 2.5 MHz which is created over a row/column-addressed 2D CMUT array. We have shown through finite element modeling and simulations ... -
5g ve ötesi için yeni nesil dalga şekli yaklaşımları
(Institute of Electrical and Electronics Engineers Inc., 2016)5G ve sonrası hücresel haberle¸sme sistemleri için yenidalga ¸sekli geli¸stirme çalı¸smaları tüm dünyada devam etmektedir.Yüksek veri hacmi, yüksek veri hızları, dü¸sük gecikme süreleri,yüksek uçbirim sayısı, çoklu anten ... -
Achieving secure communication through pilot manipulation
(Institute of Electrical and Electronics Engineers, 2015)Raising concerns about the security of wireless communication led researchers develop new concepts to keep information secret from eavesdroppers. Among them, physical layer security relies on the features of the wireless ... -
Air-Ground Doppler-delay spread spectrum for dense scattering environments
(Institute of Electrical and Electronics Engineers, 2015)Applications using Air-Ground communications are expected to grow in the future. Low altitude phases of these wireless links are considered sever channels, as they experience huge delay and Doppler spreads, however, they ... -
Analysis of deep learning based path loss prediction from satellite images
(Institute of Electrical and Electronics Engineers Inc., 2021)Determining the channel model parameters of a wireless communication system, either by measurements or by running electromagnetic propagation simulations, is a time-consuming process. Any rapid deployment of network demands ... -
Analysis of extended busy tone performance for coexistence between WRAN and WLAN TVWS networks
(Institute of Electrical and Electronics Engineers, 2015)TV White Spaces indicate spectrum bands, which were reserved for licensed terrestrial TV broadcasting and opened to unlicensed use under regulatory conditions. One important regulation which is common in all regulatory ... -
Analysis of oxygen absorption at 60 GHz frequency band
(Institute of Electrical and Electronics Engineers Inc., 2019)In this paper, analysis of atmospheric attenuation due to oxygen absorption of 60 GHz band signals is presented. The analysis is based on a time-domain simulation model that incorporates medium dispersion properties. For ... -
Beam squint effect in multi-beam mmWave massive MIMO systems
(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
(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 ... -
Brain tumor classification using MRI images and convolutional neural networks
(Institute of Electrical and Electronics Engineers Inc., 2022)The brain tumor has become one of the most prominent types of cancers affecting a huge population across the globe every year. It has the lowest life expectancy rate and the risk of death is highly associated with the type, ... -
Channel independent physical layer security
(Institute of Electrical and Electronics Engineers Inc., 2016)Security is one of the key requirements of wireless communication systems. By exploiting the broadcast nature of wireless medium, a malicious user might attempt to mislead the legitimate nodes, intercept the communication ... -
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 ... -
Clipping noise mitigation using partial transmit sequence for optical OFDM systems
(Institute of Electrical and Electronics Engineers Inc., 2014)Orthogonal frequency division multiplexing (OFDM) is a promising technology to achieve higher data rates in optical wireless communication (OWC) systems. Unlike single carrier techniques, OFDM can easily handle inter-symbol ... -
Communications scenarisos and a new mixed numerology set for flying base stations in 5g and beyond
(Institute of Electrical and Electronics Engineers Inc., 2018)In many ongoing universal projects, base stations are located in the different type of aerial vehicles with the increasing number of aeronautical platforms and applications. It triggers the different research opportunities ... -
Compact wide-band gysel power divider
(Institute of Electrical and Electronics Engineers Inc., 2022)A compact and wideband Gysel power divider is proposed in this study. The design steps on a widely available low-cost FR-4 substrate are presented. The design is simulated with a Method-of-Moments based 2.5D EM simulator ... -
Comparative performance evaluation of VLC, LTE and WLAN technologies in indoor environments
(Institute of Electrical and Electronics Engineers Inc., 2021)Recent years have seen an exponential rise in the demand for indoor wireless connections that have driven future generation networks to aim for higher data rates with extended coverage and affordable rates. The two most ... -
Compensation for the mutual coupling in transmitting antenna arrays
(Institute of Electrical and Electronics Engineers Inc., 2016)A numerical study is presented for the compensation of mutual coupling in antenna arrays. A Matlab code based on method of moments is used to find the compensated far field radiation patterns for non-identical and/or ... -
Compressed sensing structured illumination microscopy
(IEEE-Institute of Electrical and Electronics Engineers Inc, 2020)We propose a new framework for super-resolution structured illumination microscopy (SR-SIM) based on compressed sensing (CS). Our framework addresses several key problems in SIM, including long readout time and photobleaching. ... -
Compressed spectrum sensing using sparse recovery convergence patterns through machine learning classification
(Institute of Electrical and Electronics Engineers Inc., 2019)Despite the well-known success of sub-Nyquist sampling in reducing the hardware and computational costs of spectrum sensing, it still has the shortcoming of requiring a pre-determined spectrum sparsity level. This paper ... -
Control of fractional delay effect for SC transmission in beyond 5G networks
(Institute of Electrical and Electronics Engineers Inc., 2022)Wireless networks beyond 5G are expected to support a wide range of applications and use cases, and single-carrier (SC) based wireless technologies have been considered in the literature as a suitable solution for ...
