Enhancing Physical Layer Security for NOMA Transmission in mmWave Drone Networks

Conference · Mon Dec 03 04:00:00 EST 2018

OSTI ID:1497045

Rupasinghe, Nadasanka ^[1]; Yapici, Yanuz ^[1]; Guvenc, Ismail ^[1]; Dai, Huaiyu ^[1]; Bhuyan, Arupjyoti ^[2]

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1. North Carolina State University
2. Idaho National Laboratory

Note that the abstract was earlier approved with INL/CON-18-45291. This paper was provided after presentation of the material in the Asilomar conference. Physical layer security (PLS) is critically important for emerging wireless communication networks to maintain the confidentiality of the information of legitimate users. In this paper, we investigate enhancing PLS in an unmanned aerial vehicle (UAV) based communication network where a UAV acting as an aerial base station (BS) provides coverage in a densely packed user area (such as a stadium or a concert area). In particular, non-orthogonal multiple access (NOMA) together with highly-directional multi-antenna transmission techniques in mmWave frequency bands are utilized for improving spectral efficiency. In order to achieve PLS against potential eavesdropper attacks, we introduce a protected zone around the user region. However, limited resource availability refrain protected zone being extended to cover the entire eavesdropper region. Hence, we propose an approach to optimize the protected zone shape (for fixed area) at each UAV-BS hovering altitude. The associated secrecy performance is evaluated considering the secrecy outage and sum secrecy rates. Numerical results reveal the importance of protected zone shape optimization at each altitude to maximize NOMA secrecy rates. Index Terms—5G, drone, HPPP, mmWave, non-orthogonal multiple access (NOMA), physical layer security (PLS), UAV.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: IEEE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1497045
• Report Number(s): INL/CON-18-52261-Rev000
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
NOMA
UAV
mmWave