Reference : Security–Reliability Tradeoff Analysis for SWIPT- and AF-Based IoT Networks With Frie...
Scientific journals : Article
Engineering, computing & technology : Computer science
Computational Sciences
Security–Reliability Tradeoff Analysis for SWIPT- and AF-Based IoT Networks With Friendly Jammers
Nguyen, Tan N. []
Tran, Dinh-Hieu []
Chien, Trinh Van []
Phan, Van-Duc []
Voznak, Miroslav []
Tin, Phu Tran []
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Wing Kwan Ng, Derrick []
Poor, H. Vincent []
IEEE Internet of Things Journal
Institute of Electrical and Electronics Engineers
21662 - 21675
[en] 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.
Van Lang University, Vietnam ; 10.13039/501100004692-Industrial University of Ho Chi Minh City (IUH) (Grant Number: 131/HD-DHCN) ; 10.13039/501100000923-Australian Research Council’s Discovery Project (Grant Number: DP210102169) ; Ministry of Education, Youth and Sports of the Czech Republic (Grant Number: SP2021/25 and e-INFRA CZ (ID:90140))

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