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RSS FeedsEntropy, Vol. 21, Pages 595: Confidential Cooperative Communication with the Trust Degree of Jammer (Entropy)

 
 

15 june 2019 19:03:08

 
Entropy, Vol. 21, Pages 595: Confidential Cooperative Communication with the Trust Degree of Jammer (Entropy)
 




In this paper, we consider the trust degree of a jammer, defined as the probability that the jammer cooperates to secure the legitimate transmission, and investigate its influence on confidential cooperative communication. According to the trust degree, we derive the closed-form optimal transmit signal-to-noise ratio (SNR) of the confidential message, ρ c ? , to maximize the expected secrecy rate, and further obtain the relationship between ρ c ? and the trust degree associated with the transmit SNR at the transmit user and channel gains. Simulation results demonstrate that the trust degree has a great effect on the transmit SNR of the confidential message and helps improve the performance of confidential cooperation in terms of the expected secrecy rate.


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33 viewsCategory: Informatics, Physics
 
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