Cognitive AmBC-NOMA IoV-MTS Networks With IQI: Reliability and Security Analysis

• Published in: IEEE transactions on intelligent transportation systems 2023-02, Vol.24 (2), p.2596-2607
• Main Authors: Li, Xingwang, Zheng, Yike, Alshehri, Mohammad Dahman, Hai, Linpeng, Balasubramanian, Venki, Zeng, Ming, Nie, Gaofeng
• Format: Article
• Language: English
• Subjects: Ambient backscatter communication; Asymptotic properties; Backscatter; Backscattering; cognitive radio; in phase and quadrature phase imbalance; Infinity; Internet of Vehicles; Internet-of-Vehicle; IP (Internet Protocol); Marine transportation; Mathematical analysis; Network latency; Network reliability; NOMA; non-orthogonal multiple access; Nonorthogonal multiple access; physical layer security; Quadratures; Quality of service; Radio frequency; Reliability; Reliability analysis; Security; Signal to noise ratio; Transceivers; Transportation networks; Transportation systems
• ISSN: 1524-9050; 1558-0016
• DOI: 10.1109/TITS.2021.3113995

Internet-of-Vehicle (IoV) enabled Maritime Transportation Systems (MTS) communication is anticipated to support ultra-reliable and low latency, diverse quality-of-service (QoS) and large-scale connectivities. To meet such stringent demands, a cognitive ambient backscatter non-orthogonal multiple access (C-AmBC-NOMA) IoV-MTS network is proposed. We explore the reliable and secure performance of the proposed C-AmBC-NOMA IoV-MTS network with in-phase and quadrature phase imbalance (IQI) at radio-frequency (RF) front-ends and the existence of an eavesdropper. In particular, the analytical expressions on the outage probability (OP) and intercept probability (IP) are obtained after a series of calculations. For a deeper understanding, we discuss the asymptotic behavior of OPs in the high signal-to-noise ratio (SNR) region, the diversity orders of OPs, and IPs in the high main-to-eavesdropper ratio (MER) regime. The results of Monte-Carlo simulation and a series of corresponding theoretical analysis show that: i) As the SNR approaches infinity, the OPs tend to be fixed non-negative values, indicating that the diversity orders of the OPs have error floors; ii) When the MER approaches infinity, the IPs of legitimate users decrease continuously, while the IP of backscatter device (BD) increases; iii) Compared with the system performance under ideal condition, the system performance is less reliable under IQI condition, but the security performance is enhanced; iv) By carefully selecting the system parameters, a trade-off can be achieved between reliability and security.