Browsing Electrical & Electronics Engineering by Title
Now showing items 403-422 of 695
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Multicarrier HF communications with amplify-and-forward relaying
(IEEE, 2011)High-frequency (HF) radio communication has been recognized as the primary means for long-range wireless communications since the advent of radio. With its unique features, HF communication continues to be used for a wide ... -
Multicore energy efficient scheduling with energy harvesting for wireless multimedia sensor networks
(IEEE, 2017-07-02)Wireless Multimedia Sensor Networks (WMSNs) are becoming one of the latest trends in the Internet of things. However, in WMSNs the energy constraint is a significant issue. In this paper, an idea of integrating energy ... -
A multioctave 8 GHz-40 GHz receiver for radio astronomy
(IEEE, 2023-04)Accurate measurement of angular positions on the sky requires a well-defined system of reference, something that in practice is realized by the International Celestial Reference Frame (ICRF) with observations of distant ... -
Multipath-doppler diversity for broadband cooperative vehicular communications
(IEEE, 2011)Initial works on cooperative vehicular communications build upon the assumption of frequency-flat and quasi-static fading channels. This can be justified only for narrowband systems in very slow traffic flows such as in ... -
Multiple-relay selection in amplify-and-forward cooperative wireless networks with multiple source nodes
(Springer Science+Business Media, 2012-08)In this article, we propose multiple-relay selection schemes for multiple source nodes in amplify-and-forward wireless relay networks based on the sum capacity maximization criterion. Both optimal and sub-optimal relay ... -
Mutual radiation impedance of circular CMUTs on a cylinder
(IEEE, 2016)In ultrasound imaging, cross coupling of transducer elements through the medium has significant effect on the frequency response, thus affecting the quality of the ultrasound image. In Side-Looking Intravascular Ultrasound ... -
Nanoscale optical communications modulator and acousto-optic transduction with vibrating graphene and resonance energy transfer
(IEEE, 2017)Graphene resonators are future promising in terms of ultra-low weight, high Young's modulus, strength and wideband resonance frequencies. Besides that, nanoscale optical wireless channels including visible light spectrum ... -
Near-field radiative transfer in spectrally tunable double-layer phonon-polaritonic metamaterials
(Elsevier, 2018-06)Understanding of near-field radiative transfer is crucial for many advanced applications such as nanoscale energy harvesting, nano-manufacturing, thermal imaging, and radiative cooling. Near-field radiative transfer has ... -
Network topology modulation for energy and data transmission in internet of magneto-inductive things
(IEEE, 2016)Internet-of-things (IoT) architectures connecting a massive number of heterogeneous devices need energy efficient, low hardware complexity, low cost, simple and secure mechanisms to realize communication among devices. One ... -
Network-coded cooperative systems in cognitive radio networks
(IEEE, 2022-12)We study the performance of a network-coded cooperative (NCC) system in an underlay cognitive radio network (CRN). The primary network (PN) consists of a single transmitter-receiver pair, and the secondary network (SN) is ... -
Network-coded cooperative systems with generalized user-relay selection
(IEEE, 2020-11)We consider a network-coded cooperative (NCC) system that consists of N >= 2 sources, M >= 1 decodeand-forward (DF) relays, and a single destination. The relays perform network coding (NC) on the received sources' symbols ... -
Neural network based digital pre-distorter design for DCO-OFDM visible light communications
(IEEE, 2022)Direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) is an appealing modulation scheme for reliable, high-speed optical transmissions and foreseen to be used in the upcoming IEEE 802.11bb ... -
A new control plane for 5G network architecture with a case study on unified handoff, mobility, and routing management
(IEEE, 2014-11)The tremendous growth in wireless Internet use is showing no signs of slowing down. Existing cellular networks are starting to be insufficient in meeting this demand, in part due to their inflexible and expensive equipment ... -
A new LED response model and its application to pre-equalization in VLC systems
(IEEE, 2021-09-01)With the growing interest in visible light communication (VLC), it is desired to transmit data at very high rates despite the LED's bandwidth becoming a bottleneck. The bandwidth of a white LED usually ranges between ... -
A new voltammetric sensor for penicillin G using poly(3-methylthiophene)-citric acid modified glassy carbon electrode
(Elsevier, 2022-10)In this study, an effective voltammetric sensor was developed for determination of penicillin G by electropolymerization of 3-methylthiophene with citric acid on glassy carbon electrode. Penicillin G selective electrode ... -
Next generation M2M cellular networks: challenges and practical considerations
(IEEE, 2015-09)In this article we present the major challenges of future machine-to-machine (M2M) cellular networks such as spectrum scarcity, and support for a large number of low-power, lowcost devices. As an integral part of the future ... -
A no-reference measurement method of blockiness in dct-coded images through edge detection and regression
(2014-01)Bu tezde, bloklanma hatalarını bulan bir algoritma ve detaylı sonuçları sunulmaktadır. Günümüzde, resimlerin ve videoların sayısal kodlamaları ve aktarımları artmaktadır. DCT-tabanlı sıkıştırma tekniklerini kullanan, düşük ... -
Noise analysis of mode matched vibratory gyroscopes
(Springer, 2023-01)MEMS (micro-electromechanical system) vibratory gyroscopes have attracted a lot of interest recently and these gyroscopes made their way through portable devices and smart phones. However, their performance is not enough ... -
Noise-tolerant object detection and ranging using quantum correlations
(IOP Publishing, 2022-10)Imaging, detection and ranging of objects in the presence of significant background noise is a fundamental challenge in optical sensing. Overcoming the limitations imposed in conventional methods, quantum light sources ... -
Non-line-of-sight ultraviolet communications over atmospheric turbulence channels
(IEEE, 2015)Ultraviolet (UV) communication enables non-line-of sight (NLOS) outdoor wireless connectivity and is particularly desirable to relax or eliminate pointing and tracking requirements of infrared links. In the current literature, ...
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