References of "Phan, Van-Duc"
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See detailErgodic Performance Analysis of Double Intelligent Reflecting Surfaces-Aided NOMA–UAV Systems with Hardware Impairment
Nguyen, Minh-Sang Van; Do, Dinh-Thuan; Phan, Van-Duc et al

in Drones (2022)

In this work, we design an intelligent reflecting surface (IRS)-assisted Internet of Things (IoT) by enabling non-orthogonal multiple access (NOMA) and unmanned aerial vehicles (UAV) approaches. We pay ... [more ▼]

In this work, we design an intelligent reflecting surface (IRS)-assisted Internet of Things (IoT) by enabling non-orthogonal multiple access (NOMA) and unmanned aerial vehicles (UAV) approaches. We pay attention to studying the achievable rates for the ground users. A practical system model takes into account the presence of hardware impairment when Rayleigh and Rician channels are adopted for the IRS–NOMA–UAV system. Our main findings are presented to showcase the exact expressions for achievable rates, and then we derive their simple approximations for a more insightful performance evaluation. The validity of these approximations is demonstrated using extensive Monte Carlo simulations. We confirm the achievable rate improvement decided by main parameters such as the average signal to noise ratio at source, the position of IRS with respect to the source and destination and the number of IRS elements. As a suggestion for the deployment of a low-cost IoT system, the double-IRS model is a reliable approach to realizing the system as long as the hardware impairment level is controlled. The results show that the proposed scheme can greatly improve achievable rates, obtain optimal performance at one of two devices and exhibit a small performance gap compared with the other benchmark scheme. [less ▲]

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See detailPhysical Layer Security in AF-Based Cooperative SWIPT Sensor Networks
Nguyen, Tan N.; Tran, Dinh-Hieu; Chien, Trinh Van et al

in IEEE Sensors Journal (2022)

Physical layer security (PLS) with radio-frequency (RF) energy harvesting (EH) in wireless sensor networks has received significant interest as a technology for secure information transmission and ... [more ▼]

Physical layer security (PLS) with radio-frequency (RF) energy harvesting (EH) in wireless sensor networks has received significant interest as a technology for secure information transmission and prolonging the network lifetime as well as improving energy efficiency. This paper investigates PLS for a simultaneous wireless information and power transfer (SWIPT) cooperative network, which consists of multiple sensor sources, one EH relay (R), and one destination (D) in the presence of one eavesdropper (E). Further, a low-complexity, suboptimal, yet efficient sensor source selection scheme is proposed. Specifically, one sensor source is chosen to transmit information to the relay and destination such that it obtains the best channel from sensor sources to the relay. Then, by considering two relaying strategies, termed the direct link plus static power splitting-based relaying (SPSR) and direct link plus optimal dynamic power splitting-based relaying (ODPSR), the performance analysis in terms of intercept probability (IP) and outage probability (OP) are carried out for each one. Notably, the eavesdropper and destination utilize maximal ratio combining (MRC) to incorporate the received signals from the selected sensor source and the relay, which poses new challenges in obtaining the analytical expressions. In this context, we derive analytical expressions for the OP (for SPSR and ODPSR) at the destination and the IP (for SPSR) at the eavesdropper by adopting the series representation of the modified Bessel function. Finally, Monte Carlo simulations are conducted to validate the theoretical analysis and the proposed schemes’ effectiveness. Simulation results show the superiority of our scheme compared to the benchmarks. [less ▲]

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See detailSecurity–Reliability Tradeoff Analysis for SWIPT- and AF-Based IoT Networks With Friendly Jammers
Nguyen, Tan N.; Tran, Dinh-Hieu; Chien, Trinh Van et al

in IEEE Internet of Things Journal (2022), 9(21), 21662-21675

Radio-frequency (RF) energy harvesting (EH) in wireless relaying networks has attracted considerable recent interest, especially for supplying energy to relay nodes in the Internet of Things (IoT) systems ... [more ▼]

Radio-frequency (RF) energy harvesting (EH) in wireless relaying networks has attracted considerable recent interest, especially for supplying energy to relay nodes in the Internet of Things (IoT) systems to assist the information exchange between a source and a destination. Moreover, limited hardware, computational resources, and energy availability of IoT devices have raised various security challenges. To this end, physical-layer security (PLS) has been proposed as an effective alternative to cryptographic methods for providing information security. In this study, we propose a PLS approach for simultaneous wireless information and power transfer (SWIPT)-based half-duplex (HD) amplify-and-forward (AF) relaying systems in the presence of an eavesdropper. Furthermore, we take into account both static power splitting relaying (SPSR) and dynamic power splitting relaying (DPSR) to thoroughly investigate the benefits of each one. To further enhance secure communication, we consider multiple friendly jammers to help prevent wiretapping attacks from the eavesdropper. More specifically, we provide a reliability and security analysis by deriving closed-form expressions of outage probability (OP) and intercept probability (IP), respectively, for both the SPSR and DPSR schemes. Then, simulations are also performed to validate our analysis and the effectiveness of the proposed schemes. Specifically, numerical results illustrate the nontrivial tradeoff between reliability and security of the proposed system. In addition, we conclude from the simulation results that the proposed DPSR scheme outperforms the SPSR-based scheme in terms of OP and IP under the influences of different parameters on system performance. [less ▲]

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See detailSecurity and Reliability Analysis of Satellite-Terrestrial Multi-Relay Networks with Imperfect CSI
Nguyen, Tan N.; Tran, Dinh-Hieu; Chien, Trinh Van et al

in IEEE Systems Journal (2022)

This work investigates the security and reliabil- ity analysis for a novel satellite-terrestrial (SatTer) network. Specifically, a satellite attempts to transmit confidential infor- mation to a ground ... [more ▼]

This work investigates the security and reliabil- ity analysis for a novel satellite-terrestrial (SatTer) network. Specifically, a satellite attempts to transmit confidential infor- mation to a ground user (GU) via the support of multiple relay nodes in the presence of an eavesdropper that tries to overhear the information. A friendly jammer is deployed to improve the secure transmission between the satellite and the relays. Furthermore, satellite-to-relay generalized Rician fading channels and imperfect channel state information (CSI) are deployed to examine a general system model. In this context, the closed-formed expressions for the outage probability (OP) and intercept probability (IP) are derived corresponding to an amplify-and-forward (AF)-based relaying scheme, which is challenging and has not been studied before. Finally, the exactness of the mathematical analyses is validated through Monte Carlo simulations. Furthermore, the effects of various key parameters (e.g., channel estimation errors, satellite’s transmit power, relay’s transmit power, number of relays, and fading severity parameter) are examined [less ▲]

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See detailOutage Performance of Satellite Terrestrial Full-DuplexRelaying Networks with Co-Channel Interference
Nguyen, Tan N.; Tu, Lam-Thanh; Tran, Dinh-Hieu et al

in IEEE Wireless Communications Letters (2022), 11(7), 1478-1482

This letter investigates the performance of thesatellite-terrestrial networks (STN), where a satellite tries totransmit information to a ground user through the help of mul-tiple decode-and-forward relays ... [more ▼]

This letter investigates the performance of thesatellite-terrestrial networks (STN), where a satellite tries totransmit information to a ground user through the help of mul-tiple decode-and-forward relays and the existence of co-channelinterference sources. In particular, the full-duplex technique andpartial relay selection are applied at the relay to increase the totalthroughput at the destination, enhance the system reliability, andreduce the complexity. In this context, the outage probability (OP)is computed in a closed-form expression. Numerical results areprovided to confirm the accuracy of the proposed mathematicalframework. Our findings illustrate that the outage performancecan be effectively enhanced by increasing either number of relaysor transmit power. [less ▲]

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See detailPhysical Layer Security Analysis of SWIPT-Enabled Cooperative Wireless IoT Networks in the Presence of Friendly Jammer and Eavesdropper
Nguyen, Tan N.; Tran Dinh, Hieu UL; Phan, Van-Duc et al

in IEEE Internet of Things Journal (2022), 9(21),

—Physical layer security (PLS) and simultane ous wireless information and power transfer (SWIPT) in cooperative relaying have gained great interest as technolo gies for security and energy enhancement in ... [more ▼]

—Physical layer security (PLS) and simultane ous wireless information and power transfer (SWIPT) in cooperative relaying have gained great interest as technolo gies for security and energy enhancement in Internet-of Things (IoT) networks. In this work, we investigate PLS for a SWIPT- and AF-enabled cooperative wireless IoT system, consisting of one source, multiple energy harvesting (EH) relays, and one destination, in the presence of an eaves dropper that tries to overhear the confidential information. Furthermore, an EH-friendly jammer is deployed to trans mit jamming signals aimed at the eavesdropper to improve the security system. In this context, a low complexity, sub optimal, but efficient relay selection method is proposed. More specifically, the relay is selected to convey informa tion such that it has the best channel to the source. Based on the proposed system model, the performance analysis of intercept probability (IP), asymptotic IP, and non-zero secrecy probability (NZSP) is analyzed by considering the time switching (TS)-based relaying strategy. Particularly, Tan N. Nguyen is with the Wireless Communications Re search Group, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam. (e mail:nguyennhattan@tdtu.edu.vn). Dinh-Hieu Tran, Symeon Chatzinotas, and Bjorn Ottersten are with ¨ the Interdisciplinary Centre for Security, Reliability and Trust (SnT), the University of Luxembourg, Luxembourg. (e-mail: {hieu.tran-dinh, symeon.chatzinotas, bjorn.ottersten} @uni.lu). Miroslav Voznak is with VSB - Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava - Poruba, Czech Republic. (e-mail:miroslav.voznak@vsb.cz). H. V. Poor is with the Department of Electrical and Computer Engineering, Princeton University, Princeton, NJ 08544 USA. (email: poor@princeton.edu). Byung-Seo Kim is with the Department of Software and Com munications Engineering, Hongik University, Sejong 30016, South Korea (e-mail: jsnbs@hongik.ac.kr). Corresponding author: Van-Duc Phan is at Faculty of Automobile Technology, Van Lang University, Ho Chi Minh City, Vietnam. (email: duc.pv@vlu.edu.vn). This research was supported by the Ministry of Education, Youth and Sports of the Czech Republic under the grant SP2021/25 and e-INFRA CZ (ID:90140). the exact closed-form expression of IP is achieved applying modified Bessel function expansion. Finally, Monte-Carlo simulations are employed to corroborate the correctness and the efficiency of our mathematical analysis. [less ▲]

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See detailThroughput Enhancement in FD- and SWIPT-enabled IoT Networks over Non-Identical Rayleigh Fading
Nguyen, Tan N.; Tran Dinh, Hieu UL; Phan, Van-Duc et al

in IEEE Internet of Things Journal (2022), 9(12),

Simultaneous wireless information and power transfer (SWIPT) and full-duplex (FD) have emerged as prominent technologies to overcome limited energy re sources and improve spectral efficiency (SE) in ... [more ▼]

Simultaneous wireless information and power transfer (SWIPT) and full-duplex (FD) have emerged as prominent technologies to overcome limited energy re sources and improve spectral efficiency (SE) in Internet-of Things (IoT) networks. This article investigates the outage and throughput performance for a decode-and-forward (DF) relay SWIPT system, which consists of one source, multiple relays, and one destination. Herein, the relay nodes can harvest energy from the source’s signal and operate in the FD mode. Further, a sub-optimal, low-complexity, yet efficient relay selection scheme is proposed. Specifically, one relay is selected to convey information from a source to a destination so that it achieves the best channel from source to relays. Then, by considering two relaying strategies, termed static power splitting-based relaying (SPSR) and optimal dynamic power splitting-based relaying (ODPSR), performance analysis in terms of outage probability (OP) and throughput are performed for each one. Notably, the independent and non-identically distributed (i.n.i.d.) Rayleigh fading channels are considered, which poses new challenges for obtaining analytical expressions. In this context, we derive exact closed-form expressions for the OP and throughput of both SPSR and ODPSR schemes. Moreover, the optimal power splitting ratio of ODPSR is obtained to maximize the achievable capacity at the destination. Finally, extensive numerical and simulation results are presented to confirm our analytical findings. Both the simulation and analytical results show the superiority of ODPSR over SPSR. [less ▲]

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See detailPerformance Enhancement for Full-Duplex Relaying with Time-Switching-Based SWIPT in Wireless Sensors Networks
Tan, N. Nguyen; Tin, Phu Tran; Tran Dinh, Hieu UL et al

in Ad Hoc Networks (2021)

Full-duplex (FD) with simultaneous wireless information and power transfer (SWIPT) in wireless ad hoc networks has received increased attention as a technology for improving spectrum and energy efficiency ... [more ▼]

Full-duplex (FD) with simultaneous wireless information and power transfer (SWIPT) in wireless ad hoc networks has received increased attention as a technology for improving spectrum and energy efficiency. This paper studies the outage performance for a SWIPT-based decode-andforward (DF) FD relaying network consisting of a single-antenna source S, a two-antenna relay R, and a multi-antenna destination D. Specifically, we propose four protocols, namely static timeswitching factor with selection combining (STSF-SC), static time-switching factor with maximal ratio combining (STSF-MRC), optimal dynamic time-switching factor with selection combining (ODTSFSC), and optimal dynamic time-switching factor with maximal ratio combining (ODTSF-MRC) to fully investigate the outage performance of the proposed system. In particular, the optimal timeswitching factor from the ODTSF-SC and ODTSF-MRC methods is designed to maximize the total received data at the destination. In this context, we derive exact closed-formed expressions for all schemes in terms of the outage probability (OP). Finally, the Monte Carlo simulations are conducted to corroborate the theoretical analysis’s correctness and the proposed schemes’ effectiveness. [less ▲]

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