Browsing Makale Koleksiyonu by Title
Now showing items 1-20 of 182
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A 3-DoF robotic platform for the rehabilitation and assessment of reaction time and balance skills of MS patients
(Public Library of Science, 2023)The central nervous system (CNS) exploits anticipatory (APAs) and compensatory (CPAs) postural adjustments to maintain the balance. The postural adjustments comprising stability of the center of mass (CoM) and the pressure ... -
A 70-to-2 v triboelectric energy harvesting system utilizing parallel-SSHI rectifier and DC-DC converters
(Institute of Electrical and Electronics Engineers Inc., 2021)In this article, first integrated circuit (IC) implementation of parallel synchronized switching harvesting on inductor (p-SSHI) is presented for triboelectric energy harvester targeting 1 Hz to 5 Hz mechanical motions. ... -
Adaptive OFDM-IM for enhancing physical layer security and spectral efficiency of future wireless networks
(Hindawi Limited, 2018)In this paper, we propose algorithms for enhancing physical layer security and spectral efficiency of Orthogonal Frequency Division Multiplexing (OFDM) with Index Modulation (IM) systems. Particularly, different activation ... -
Analysis of a compact multi-band textile antenna for WBAN and WLAN applications
(Istanbul Technical University, 2021)A dual-band wearable antenna is designed on a textile material. The design operates at ISM bands available for Wireless Body Area Network (WBAN) and Wireless Local Area Network (WLAN) with an input match better than -15 ... -
Anatomical region-specific in vivo wireless communication channel characterization
(IEEE-Inst Electrical Electronics Engineers Inc, 2017)In vivo wireless body area networks and their associated technologies are shaping the future of health-care by providing continuous health monitoring and noninvasive surgical capabilities, in addition to remote diagnostic ... -
Application-based coexistence of different waveforms on non-orthogonal multiple access
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2021)In the study, the coexistence of different waveform structures on the same resource element is studied under the theory of non-orthogonal multiple access (NOMA). This study introduces a paradigm-shift on NOMA towards the ... -
Beam selection for ambient backscatter communication in beamspace mmWave symbiotic radio
(Institute of Electrical and Electronics Engineers Inc., 2023)The Internet of Things revolution has profoundly impacted wireless communication systems. Access to high data rates is now just as important as low power operation. The use of incident millimeter-wave (mmWave) signals for ... -
Beamspace MIMO systems with reduced beam selection complexity
(Institute of Electrical and Electronics Engineers Inc., 2023)Beamspace multiple-input multiple-output (B-MIMO) systems with proper beam selection (BS) promise to lower the radio-frequency (RF) chains overhead with no noticeable degradation in performance. Most of the existing BS ... -
Bio-inspired filter banks for frequency recognition of SSVEP-based brain-computer interfaces
(Institute of Electrical and Electronics Engineers, 2019)Brain-computer interfaces (BCIs) and their associated technologies have the potential to shape future forms of communication, control, and security. Specifically, the steady-state visual evoked potential (SSVEP) based BCIs ... -
Blind super-resolution restoration with frame-by-frame nonparametric blur estimation
(Springer, 2016)In this paper, we investigate super-resolution image restoration from multiple images, which are possibly degraded with large nonparametric motion blur. The blur kernel for each input image is separately estimated. This ... -
Channel randomness-based adaptive cyclic prefix selection for secure OFDM system
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)A novel method for cyclic prefix (CP) adaptation based on wireless channel randomness is proposed for orthogonal frequency-division multiplexing (OFDM) systems in urban areas. Especially, a quantization algorithm and an ... -
Characterization of atmospheric absorption in the 60 GHz frequency band using a multi-pole material model
(Applied Computational Electromagnetics Society, 2019)Atmospheric attenuation of electromagnetic signals at the 60 GHz frequency band is dominated by oxygen absorption which represents a major obstacle to 5G communications using this band. So far, only empirical equations ... -
Characterization of LEDs for visible-light communications
(SPIE-Society of Photo-Optical Instrumentation Engineers, 2021)Recent advances in solid-state technologies have enabled the development of light-emitting diodes (LEDs) with favorable features such as long life expectancy, low-power consumption, and reduced heat dissipation. Visible-light ... -
Classifications and applications of physical layer security techniques for confidentiality: A comprehensive survey
(IEEE-Inst Electrical Electronics Engineers Inc, 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 wireless ... -
Cognitive security of wireless communication systems in the physical layer
(Wiley-Hindawi, 2017)While the wireless communication systems provide the means of connectivity nearly everywhere and all the time, communication security requires more attention. Even though current efforts provide solutions to specific ... -
Common CP-OFDM transceiver design for low-complexity frequency domain equalization
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2022)Common cyclic prefix-orthogonal frequency-division multiplexing (CCP-OFDM) groups multiple OFDM symbols and uses one CP to protect them in slow time-variant channels. However, due to this particular design of CCP-OFDM ... -
Composite multiple-mode orthogonal frequency division multiplexing with index modulation
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2023)In this paper, we propose a composite multiple-mode orthogonal frequency division multiplexing with index modulation (C-MM-OFDM-IM) scheme to increase the spectral efficiency (SE) of OFDM-IM systems by extending the indexing ... -
A comprehensive experimental emulation for OTFS waveform RF-Impairments
(MDPI, 2023)The orthogonal time-frequency space (OTFS) waveform exceeds the challenges that face orthogonal frequency division multiplexing (OFDM) in a high-mobility environment with high time-frequency dispersive channels. Since radio ... -
Control of electromagnetic radiation on coexisting smart radio environment
(IEEE-Institute of Electrical and Electronics Engineers, 2022)Efficient spectrum utilization is always the fundamental challenge of mobile communication technology toward 6G. Instead of conventional spectral efficiency in bps/Hz, geographical region shall be brought into consideration ... -
Cp-less ofdm with alignment signals for enhancing spectral efficiency, reducing latency, and improving phy security of 5g services
(Institute of Electrical and Electronics Engineers Inc., 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 ...
