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Secure Transmission for Two-Way Vehicle-to-Vehicle Networks with an Untrusted Relay
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 Title & Authors
Secure Transmission for Two-Way Vehicle-to-Vehicle Networks with an Untrusted Relay
Gao, Zhenzhen;
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This paper considers the physical layer security problem for a two-way vehicle-to-vehicle network, where the two source vehicles can only exchange information through an untrusted relay vehicle. The relay vehicle helps the two-way transmission but also acts as a potential eavesdropper. Each vehicle has a random velocity. By exploiting the random carrier frequency offsets (CFOs) caused by random motions, a secure double-differential two-way relay scheme is proposed. While achieving successful two-way transmission for the source vehicles, the proposed scheme guarantees a high decoding error floor at the untrusted relay vehicle. Average symbol error rate (SER) performance for the source vehicles and the untrusted relay vehicle is analyzed. Simulation results are provided to verify the proposed scheme.
Vehicle-to-vehicle communications;Physical layer security;Two-way relay;Double differential modulation;
 Cited by
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