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All Journal International Journal of Electrical and Computer Engineering Perfecting a Video Game with Game Metrics
Nhat-Tien Nguyen
VSB-Technical University of Ostrava
Computer Science & IT Electrical & Electronics Engineering

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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.
Throughput analysis of non-orthogonal multiple access and orthogonal multiple access assisted wireless energy harvesting K-hop relaying networks Phung Ton That; Nhat-Tien Nguyen; Duy-Hung Ha; Miroslav Voznak
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i1.pp522-530

Abstract

This study introduces the non-orthogonal multiple access (NOMA) technique into the wireless energy harvesting K-hop relay network to increase throughput. The relays have no dedicated energy source and thus depend on energy harvested by wireless from a power beacon (PB). Recently, NOMA has been promoted as a technology with the potential to enhance connectivity, reduce latency, increase fairness amongst users, and raise spectral effectiveness compared to orthogonal multiple access (OMA) technology. For performance considerations, we derive exact throughput expressions for NOMA and OMA-assisted multi-hop relaying and compare the performance between the two. The obtained results are validated via Monte Carlo simulations.
Co-Authors Chi-Bao Le Dinh-Thuan Do Duy-Hung Ha Hong-Nhu Nguyen Miroslav Voznak Ngoc-Long Nguyen Phung Ton That Si-Phu Le Tam Nguyen Kieu