Mühendislik Fakültesi / Faculty of Engineering: Recent submissions
Now showing items 141-160 of 289
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Security in UAV/Drone communications
(CRC Press, 2019)This chapter highlights the latest advances and state-of-the-art research attempts performed towards applying physical layer security (PLS) to unmanned aerial vehicle (UAV) communication systems. It discusses some of the ... -
Physical layer security for NOMA: requirements, merits, challenges, and recommendations
(2019)Non-orthogonal multiple access (NOMA) has been recognized as one of the most significant enabling technologies for future wireless systems due to its eminent spectral efficiency, its ability to provide an additional ... -
mm-Waves in the Internet of Nano-Things
(Auerbach Publications, 2019)The nano-networks paradigm can empower the consumers to make a difference to their wellbeing by connecting data to personalized analysis within timely insights. The real-time data can be used in a variety of nano-applications ... -
A spectrally efficient OFDM-based modulation scheme for future wireless systems
(2019 Scientific Meeting on Electrical-Electronics and Biomedical Engineering and Computer Science, EBBT 2019, 2019)A novel modulation technique termed as orthogonal frequency division multiplexing with subcarrier power modulation (OFDM-SPM) for efficient data transmission in wireless communication systems is proposed. OFDM-SPM uses the ... -
Improving the physical layer security of IoT-5G systems
(Springer, 2019)Ensuring the security of the Internet of Things (IoT) is deemed as one of the most critical challenges and needs that have to be addressed in order to guarantee the successful deployment of IoT in emerging technologies ... -
Viability of agricultural wastes as substitute of natural aggregate in concrete: A review on the durability-related properties
(Journal of Cleaner Production, 2020)Increase in construction activities has led to rapid depletion of natural resources, particularly aggregates which are utilized in the production of concrete. At the same time, there are huge amount of solid wastes originating ... -
Hydraulic and strength characteristics of pervious concrete containing a high volume of construction and demolition waste as aggregates
(Construction and Building Materials, 2020)Recently, construction and demolition waste generated in Malaysia has dramatically increased. For long-term sustainable development, demolition wastes can be recycled in concrete production. Recycled concrete aggregate ... -
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 ...
