Article Per Year (5 Year)
p-Index From 2019 - 2024
1.225
P-Index
This Author published in this journals
All Journal International Journal of Electrical and Computer Engineering Perfecting a Video Game with Game Metrics Bulletin of Electrical Engineering and Informatics
Miroslav Voznak
VSB-Technical University of Ostrava
Computer Science & IT Electrical & Electronics Engineering

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Perfecting a Video Game with Game Metrics

 1 
Wireless power transfer enabled NOMA relay systems: two SIC modes and performance evaluation Dinh-Thuan Do; Chi-Bao Le; Hong-Nhu Nguyen; Tam Nguyen Kieu; Si-Phu Le; Ngoc-Long Nguyen; Nhat-Tien Nguyen; Miroslav Voznak
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 6: December 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i6.12218

Abstract

In this study, we deploy design and performance analysis in new system model using a relaying model, energy harvesting, and non-orthogonal multi-access (NOMA) network. It is called such topology as wireless powered NOMA relaying (WPNR). In the proposed model, NOMA will be investigated in two cases including single successive interference cancellation (SIC) and dual SIC. Moreover, the simultaneous wireless information and power transfer (SWIPT) technology can be employed to feed energy to relays who intend to serve far NOMA users. In particular, exact outage probability expressions are provided to performance evaluation. The results from the simulations are used to demonstrate the outage performance of the proposed model in comparison with the current models and to verify correct of derived expressions.
Influence of Dual-layer and Triple-layer Remote Phosphor Package on Optical Properties of White LEDs Nguyen Thi Phuong Thao; Nguyen Doan Quoc Anh; Kamil Postava; Miroslav Voznak; Phan Xuan Le
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 5: October 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i5.9505

Abstract

In this paper, the influence of the distance between phosphor layers in the dual-layer and triple- layer remote package on luminous flux and color rendering property is presented and analyzed. During the simulation, it is recognized that an appropriate distance can produce higher quality of the multi-chip white LED (MCW-LEDs) through adjusting the distance between two and three phosphor layers. According to the research results, 0.1mm is the outstanding distance between two phosphor layers so that the performance of MCW-LEDs can be accomplished the best optimal effect. In addition, the simulation results show that the dual-layer structure yielded higher optical properties than the triple-layer structure in relation to the distance. The highest lumen output of triple layer-structure can be achieved at the distance of 0.6 mm and dual-layer structure is 0.1 mm. Meanwhile, the color rendering index (CRI) changes insignificantly when the distance increases. Triple layer package is not practical for high power white LEDs due to high cost and low conversion efficiency. Dual-layer remote phosphor package with the distance between two phosphor layers of 0.1mm is an optimal structure of LEDs in improving the luminous efficiency and the color quality.
Co-Authors Chi- Bao Le Chi-Bao Le Cuu Ho Van Dinh-Thuan Do Duy-Hung Ha Hong- Nhu Nguyen Hong-Nhu Nguyen Hong-Nhu Nguyen Hong-Nhu Nguyen Kamil Postava Le-Chi Bao Leminh Thien Huynh Ngoc- Long Nguyen Ngoc-Long Nguyen Nguyen Doan Quoc Anh Nguyen Thi Phuong Thao Nhan Duc Nguyen Nhat-Tien Nguyen Nhat-Tien Nguyen Phan Xuan Le Phung Ton That Si-Phu Le Tam Nguyen Kieu