Güncel Gönderiler: Mühendislik Fakültesi / Faculty of Engineering
Toplam kayıt 302, listelenen: 161-180
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Performance of mechanical steel bar splices using grouted couplers under uniaxial tension
(Journal of Building Engineering, 2021)In this study, grouted couplers were used to connect steel bars as an alternative approach to the conventional steel bar lapping method. The aim is to avoid bar congestion problems and to reduce the required quantity of ... -
Secure and reliable IoT communications using nonorthogonal signals’ superposition with dual-transmission
(IEEE 31st PIMRC'20 - Workshop on 5G Mobile Communication System for Smart Factories, 2020)Ensuring secure communication for internet of things (IoT) has drawn much attention because of the lim itation in the use of conventional cryptographic techniques owing to the unique features of IoT devices such as ... -
CP-less OFDM with alignment signals for enhancing spectral efficiency, reducing latency, and improving PHY security of 5G services
(IEEE Access, 2018)Although orthogonal frequency-division multiplexing (OFDM) is a widely accepted waveform in many standards and is expected to keep its dominance in future 5G systems with various types of parameterized waveforms, its ... -
Joint PHY/MAC layer security design using ARQ with MRC and null-space independent PAPR-aware artificial noise in SISO systems
(IEEE Transactions on Wireless Communications, 2018)Automatic-repeat-request (ARQ) as a MAC layer mechanism and artificial noise (AN) as a physical layer mechanism along with the help of maximal ratio combining (MRC), are jointly designed to achieve secrecy. Basically, a ... -
Modulation options for OFDM-based waveforms: classification, comparison, and future directions
(IEEE, 2019)This paper provides a comparative study on the performance of different modulation options for orthogonal frequency division multiplexing (OFDM) in terms of their spectral efficiency, reliability, peak-to-average power ... -
Classifications and applications of physical layer security techniques for confidentiality: a comprehensive survey
(IEEE, 2019)Physical layer security (PLS) has emerged as a new concept and powerful alternative that can complement and may even replace encryption-based approaches, which entail many hurdles and practical problems for future ... -
Autonomous first response drone-based smart rescue system for critical situation management in future wireless networks
(RS Open Journal on Innovative Communication Technologies, 2020)Numerous problems have been experienced due to the current exponential rise in urban population. Such challenges include insecurity and disaster management. It is therefore critical that new and efficient ways of disaster ... -
Physical layer security against eavesdropping in the internet of drones (IoD) based communication systems
(2019)rones or unmanned aerial vehicles (UAVs) communication technology, which has recently been thoroughly studied and adopted by 3GPP standard (Release 15) due to its dynamic, flexible, and flying nature, is expected to be ... -
Modeling and analyzing Ca2+ channel dynamics during cardiac action potential
(International Conference on Applied Analysis and Mathematical Modeling, 2019)We have studied the cardiac action potential model which consists of 26 nonlinear first-order differential equations in a detailed manner computationally. Later, it has been discussed what is the role of the Ca2+ ion channel ... -
Computational bifurcation analysis to find dynamic transitions of the corticotroph model
(Ankara University Faculty of Sciences, 2018)The corticotroph model is a 7th order nonlinear differential equation system derived for representing the action potential dynamics of corticotrophs; one of the endocrine cells that are responsible for stress regulation. ... -
Mathematical model of the ventricular action potential and effects of isoproterenol-induced cardiac hypertrophy in rats
(European Biophysics Journal, 2020)Mathematical action potential (AP) modeling is a well-established but still-developing area of research to better understand physiological and pathological processes. In particular, changes in AP mechanisms in the isoproterenol ... -
Multiple input multiple output with antenna number modulation and adaptive antenna selection
(RS Open Journal on Innovative Communication Technologies, 2020)Multiple input multiple output system with antenna number modulation (MIMO-ANM) is proposed in this paper as a novel transmission method that can be used instead of conventional MIMO with spatial modulation (MIMO-SM) for ... -
The generalization of orthogonal frequency division multiplexing with subcarrier power modulation to quadrature signal constellations
(RS Open Journal on Innovative Communication Technologies, 2020)A novel modulation technique termed as orthogonal frequency division multiplexing with subcarrier power modulation (OFDM-SPM) has been proposed for achieving spectral-efficient data transmission in wireless communication ... -
Non-coherent OFDM-subcarrier power modulation for low complexity and high throughput IoT applications
(RS Open Journal on Innovative Communication Technologies, 2020)Aiming to reduce the transceiver complexity and power consumption of communication systems dedicated to serving future Internet of Things (IoT) applications, researchers have taken many approaches with varying degrees of ... -
Massive MIMO channel prediction using recurrent neural networks
(RS Open Journal on Innovative Communication Technologies, 2020)Massive MIMO has been classified as one of the high potential wireless communication technologies due to its unique abilities such as high user capacity, increased spectral density, and diversity among others. Due to the ... -
New physical layer key generation dimensions: subcarrier indices/positions-based key generation
(IEEE Communications Letters, 2021)In this letter, novel algorithms for secret key generation from the wireless channel in multi-carrier systems are proposed for ensuring the confidentiality and authentication in wireless communication systems. The novelty ... -
An inclusive survey of contactless wireless sensing: a technology used for remotely monitoring vital signs has the potential to combating COVID-19
(RS Open Journal on Innovative Communication Technologies, 2020)With the Coronavirus pandemic showing no signs of abating, companies and governments around the world are spending millions of dollars to develop contactless sensor technologies that minimize the need for physical interactions ... -
A novel small-scale nonorthogonal communication technique using auxiliary signal superposition with enhanced security for future wireless networks
(RS Open Journal on Innovative Communication Technologies, 2020)In this work, an advanced novel small-scale non-orthogonal communication technique utilizing physical layer security (PLS) for enhanced security and reliability for two users is proposed. This work is motivated by current ... -
An advanced non-orthogonal multiple access security technique for future wireless communication networks
(RS Open Journal on Innovative Communication Technologies, 2020)The future wireless communication systems demand much more enhanced security and reliability compared to currently deployed systems. In this work, we propose a much simpler yet more efficient physical layer security (PLS) ... -
Multiple MIMO with joint block antenna number modulation and adaptive antenna selection for future wireless systems
(RS Open Journal on Innovative Communication Technologies, 2020)Multiple MIMO with joint block Antenna Number Modulation (M-MIMO-ANM) is proposed in this paper as a novel transmission method that exploits the features of both Massive Multiple Input Multiple Output (M-MIMO) and Antenna ...
