Electrical Engineering: Recent submissions
Now showing items 1241-1260 of 2817
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Global dissipativity of fuzzy bidirectional associative memory neural networks with proportional delays
( University of Sistan and Baluchestan , 2021 , Article)This article aimed to investigate the problem of global dissipativity of Fuzzy Bidirectional Associative Memory Neural Networks (FBAMNNs- for short) with proportional delays. Via Lyapunov Functionals (LFs- for short) and ... -
Assessing mobile ions contributions to admittance spectra and current-voltage characteristics of 3D and 2D/3D perovskite solar cells
( Elsevier B.V. , 2020 , Article)Recently, the 2D perovskite layer is employed as a capping/passivating layer in the perovskite solar cells (PSCs). The 2D perovskite layer is prepared by inserting a large-sized hydrophobic cation spacer into the perovskite ... -
Synthesis of in situ photoinduced halloysite-polypyrrole@silver nanocomposite for the potential application in humidity sensors
( MDPI AG , 2020 , Article)Halloysite-polypyrrole-silver nanocomposite has been prepared via in situ photopolymerizations of pyrrole in the presence of silanized halloysite and silver nitrate as a photoinitiator. The halloysite nanoclay (HNT) was ... -
Investigation of the structural, optical and gas sensing properties of PANI coated Cu-ZnS microsphere composite
( Royal Society of Chemistry , 2020 , Article)Polyaniline (PANI)/Cu-ZnS composites with porous microspheres are prepared by a hydrothermal and in situ polymerization method. The structural, optical, and morphological properties are characterized by X-ray powder ... -
A real-time gradient aware multi-variable handheld urban scale air quality mapping IoT system
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)In outdoor urban scale air quality mapping, electrochemical sensors warm-up time, cross-sensitivity, geo-location typography, and energy efficiency are major challenges. These challenges lead to real-time gradient anomalies ... -
Secrecy Performance of Cooperative NOMA System with Multiple Full-Duplex Relays against Non-Colluding/Colluding Eavesdroppers
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)In 5G and beyond wireless communication net-works, non-orthogonal multiple access (NOMA) and Full-Duplex (FD) techniques are considered as promising key techniques. However, the secrecy in NOMA systems has proven to be ... -
Secure Performance of DF Relaying in Cooperative NOMA over Rician Fading Channels
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)In this paper, a Decode-and-Forward (DF) relaying system for Non Orthogonal Multiple Access (NOMA) networks is considered, where the transmitted information between the relay and NOMA users can be overheard by an eavesdropper. ... -
Global dissipativity of high-order Hopfield bidirectional associative memory neural networks with mixed delays
( Springer , 2020 , Article)In this paper, the problem of the global dissipativity of high-order Hopfield bidirectional associative memory neural networks with time-varying coefficients and distributed delays is discussed. By using Lyapunov?Krasovskii ... -
A smart rig for calibration of gas sensor nodes: Test and deployment
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference)Nowadays, large number of sensors are deployed and used for air quality monitoring or in some industries that process hazardous gases. These sensors need periodic calibration to ensure reliable measurements. This paper ... -
Global dissipativity of fuzzy cellular neural networks with inertial term and proportional delays
( Taylor and Francis Ltd. , 2020 , Article)This paper is concerned with the global dissipativity of fuzzy cellular neural networks with inertial term and proportional delays. Based on Lyapunov functionals and linear matrix inequality approach, new sufficient ... -
Design of Qatar University's first solar car for Shell Eco-marathon competition
( IEEE , 2012 , Conference)Research and development in the area of renewable energy is growing fast, supported by the increasing awareness about sustainability, environment and limitation of conventional sources of energy. Interestingly, oil and gas ... -
Towards understanding the effects of climatic and environmental factors on solar PV performance in arid desert regions (Qatar) for various PV technologies
( IEEE , 2012 , Conference)The sensitivity of various solar photovoltaic technologies to dust, temperature and relative humidity is investigated for Qatar's environment. Results obtained show that mono-crystalline PVs have efficiencies as high as ... -
A fuzzy logic based irrigation management system in arid regions applied to the state of qatar
( WITPress , 2012 , Article)In arid and hyper arid regions like Qatar, the time and duration of irrigation is key to achieving sustainable irrigations. This paper proposes a practical solution based on artificial intelligence where all design and ... -
Long-term performance analysis and power prediction of PV technology in the State of Qatar
( Elsevier Ltd , 2017 , Article)“Solar photovoltaic (PV) energy in GCC”- the term seems convincing to many solar PV industries due to high solar exposure in GCC region. However, long-term effects such as dust accumulation and seasonal variation are major ... -
A Deep Learning Model for LoRa Signals Classification Using Cyclostationay Features
( IEEE Computer Society , 2021 , Conference)With the witnessed exponential growth of Internet of Things (IoT) nodes deployment following the emerging applications, multiple variants of technologies have been proposed to handle the IoT requirements. Among the proposed ... -
On physical layer security of correlated multiantenna cognitive radio receivers
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference)In limited space scenarios, the antennas in the multiantenna cognitive radio (CR) system are closely spaced and often experience correlation among them. In this work, the secrecy performance of correlated multiantenna CR ... -
A Novel Downlink IM-NOMA Scheme
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In the next generations of communication systems, resources' scarcity devolves to a more critical point as a consequence of the expected massive number of users to be served. Furthermore, the users' contradicting requirements ... -
A Novel RIS-Assisted Modulation Scheme
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In this work, in order to achieve higher spectrum efficiency, we propose a reconfigurable intelligent surface (RIS)-assisted multi-user communication uplink system. Different from previous work in which the RIS only optimizes ... -
Performance of THz Communications Over Cascaded RISs: A Practical Solution to the Over-Determined Formulation
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Article)As a last resort for radio frequency communication, Terahertz bands (0.1-10 THz) are targeted thanks to their ability to provide ultra-wide bandwidth satisfying varieties of emerging applications. However, the waves ... -
A Secrecy Study of UAV Based Networks with Fountain Codes and FD Jamming
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Securing wireless communication using different techniques has been an interesting topic for research, especially with the increasing demand on fast and secure transmission. In this research, we conduct a performance ...
