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Physical Layer Security in Vehicular Communication Networks in the Presence of Interference
This paper studies the physical layer security of a vehicular communication
network in the presence of interference constraints by analysing its secrecy
capacity. The system considers a legitimate receiver node and an eavesdropper
node, within a shared network, both under the effect of interference from other
users. The double-Rayleigh fading channel is used to capture the effects of the
wireless communication channel for the vehicular network. We present the
standard logarithmic expression for the system capacity in an alternate form,
to facilitate analysis in terms of the joint moment generating functions (MGF)
of the random variables representing the channel fading and interference.
Closed-form expressions for the MGFs are obtained and Monte-Carlo simulations
are provided throughout to validate the results. The results show that
performance of the system in terms of the secrecy capacity is affected by the
number of interferers and their distances. The results further demonstrate the
effect of the uncertainty in eavesdropper location on the analysis
On the Security of Millimeter Wave Vehicular Communication Systems using Random Antenna Subsets
Millimeter wave (mmWave) vehicular communica tion systems have the potential
to improve traffic efficiency and safety. Lack of secure communication links,
however, may lead to a formidable set of abuses and attacks. To secure
communication links, a physical layer precoding technique for mmWave vehicular
communication systems is proposed in this paper. The proposed technique
exploits the large dimensional antenna arrays available at mmWave systems to
produce direction dependent transmission. This results in coherent transmission
to the legitimate receiver and artificial noise that jams eavesdroppers with
sensitive receivers. Theoretical and numerical results demonstrate the validity
and effectiveness of the proposed technique and show that the proposed
technique provides high secrecy throughput when compared to conventional array
and switched array transmission techniques
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