Results 31 to 40 of about 568,091 (189)
Spatial duty cycle model for Cognitive Radio [PDF]
21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010 Spectrum occupancy modeling in the context of Dynamic Spectrum Access/Cognitive Radio (DSA/CR) constitutes a rather unexplored research area that still requires much more effort. This paper addresses the problem of modeling spectrum occupancy in the spatial domain by proposing a novel theoretical approach that enables modeling the occupancy level ...
Lopez-Benitez, Miguel +2 more
openaire +3 more sources
Human Machine Interface Visual Basic Arduino untuk DC – DC converter Type Buck
Jurnal Teknik Elektro Indonesia, 2021 Pada era teknologi yang semakin berkembang pesat, penggunaan elektronika daya semakin banyak digunakan seperti untuk penggontrolan motor dan lain – lain.
Mohammed Abdul Aziz Alhaqeem +1 more
doaj +1 more source
Reinforcement Learning Based Adaptive Duty Cycling in LR-WPANs
IEEE Access, 2020 For conserving energy, duty cycle is defined by setting up the active and sleep periods of network nodes. In beacon enabled networks, to provide support for duty cycle, the IEEE 802.15.4 standard uses optional super-frame structure.
Shahzad Sarwar +5 more
doaj +1 more source
A small‐area and low‐power all‐digital duty cycle corrector with de‐skew circuit
Electronics Letters, 2023 This paper proposes a small‐area and low‐power all‐digital duty cycle corrector with de‐skew circuit. By adopting the proposed delay unit containing a pre‐charge transistor, half cycle delay line can accurately generate half‐cycle delay, thus ensuring ...
Ya Hai +3 more
doaj +1 more source
International Journal of Electrochemical Science, 2021 The pulse current electrodeposition (PCE) technique was employed to successfully deposit Ni/W–TiN coatings on X52 steel. The effect of frequency and duty cycle on coating parameters like surface morphological characteristics, grain orientation, micro ...
Lixin Wei +4 more
doaj +1 more source
Droplet: A New Denial-of-Service Attack on Low Power Wireless Sensor Networks [PDF]
, 2013 In this paper we present a new kind of Denial-of-Service attack against the PHY layer of low power wireless sensor networks. Overcoming the very limited range of jamming-based attacks, this attack can penetrate deep into a target network with high power ...
He, Zhitao, Voigt, Thiemo
core +2 more sources
Research on pulse electrodeposition of Fe-Ni alloy
AIP Advances, 2014 Fe-Ni alloys were fabricated on steel substrates by means of pulse electrodeposition in sulfate solutions. The layers were electrodeposited using different peak current densities, duty cycles and frequencies.
Yongsen Peng +4 more
doaj +1 more source
Rancang Bangun Generator PWM Berbasis Mikrokontroler AVR ATmega
Elektron, 2020 PWM is widely used in the fields of automatic control, power electronics and cellular communications. Previous research designed a PWM generator using the OMAP-L138 chip to produce a simple, high-precision, flexible and portable circuit.
Firdaus firdaus +2 more
doaj +1 more source
Synthesis and properties of Ni–W/ZrO2 nanocomposite coating fabricated by pulse electrodeposition
Results in Physics, 2019 A novel ZrO2 ceramic particle reinforced Ni–W nanocomposite coating has been fabricated by pulse electrodeposition. The optimization of pulse duty cycle (r) for superior microhardness, corrosion-resisting properties as well as compact microstructure were
Weiwei Zhang, Cuicui Ji, Baosong Li
doaj +1 more source
Impact of EU duty cycle and transmission power limitations for sub-GHz LPWAN SRDs : an overview and future challenges [PDF]
, 2019 Long-range sub-GHz technologies such as LoRaWAN, SigFox, IEEE 802.15.4, and DASH7 are increasingly popular for academic research and daily life applications.
De Poorter, Eli +3 more
core +1 more source