PLS-Based Secrecy Transmission for VANETs

Due to the requirement of real time controlling on the vehicular ad-hoc networks (VANETs), the security measure should be fast, lightweight, and strong. In this paper, we investigate the secure communication between the on-board unit and the roadside unit which has strong computing ability to remedy...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2020-07, Vol.69 (7), p.7596-7608
Main Authors: Song, Huanhuan, Wen, Hong, Tang, Jie, Chen, Yi, Xie, Feiyi, Liao, Run-Fa, Chen, Songlin
Format: Article
Language:English
Subjects:
Ad hoc networks
Antennas
Array signal processing
Computation
Computer simulation
Covariance matrices
Data transmission
Energy harvesting
Mobile ad hoc networks
norm-bounded channel uncertainty
Onboard
Power transfer
Receivers
Roadsides
secrecy rate maximization (SRM)
Security
Symmetric matrices
Transmission rate (communications)
Uncertainty
Vehicular ad-hoc networks (VANETs)
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Summary:Due to the requirement of real time controlling on the vehicular ad-hoc networks (VANETs), the security measure should be fast, lightweight, and strong. In this paper, we investigate the secure communication between the on-board unit and the roadside unit which has strong computing ability to remedy the insufficient computing power of on-board unit. The novel schemes are developed to guarantee both security and energy harvest. Specifically, a muti-antenna roadside unit (PT) conveys a secret message to a muti-antenna primary on-board unit (PR) intercepted by multiple muti-antenna adversaries (Eves). Simultaneously, a secondary roadside unit (ST) adopts simultaneous wireless information and power transfer (SWIPT) strategy to send secret-free data embeded with energy-carrying artificial noise (AN) to its service subscriber (SR), by which secrecy guarantee is provided for the primary on-board unit and the quality of service (QoS) is satisfied, i.e., data traffic and harvested energy. Technically, considering the secondary link's data transmission rate, harvested energy, and transmit power, we propose joint power allocation designs for the nonconvex secrecy rate maximization (SRM) problems under either perfect channel state information (CSI) or norm-bounded channel uncertainty model. Simulation results show that the proposed secondary link-aided secrecy designs can achieve better performance in terms of secrecy rate and energy efficiency.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2020.2994446