
This paper proposes a novel covert communication strategy for symbiotic radio (SR) systems enhanced by intelligent reflecting surfaces (IRS), leveraging double-reflection links and optimizing system parameters to minimize detection probability by a warden.


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intelligent-reflecting-surface-assisted-covert-communication-in-symbiotic-radio-systems


Intelligent Reflecting Surface-Assisted Covert Communication in Symbiotic Radio Systems


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Blockchain-based covert channels require contactless negotiation, indistinguishable transaction features, and untraceable communication identities for secure communication.


abc-channel-a-novel-blockchain-based-covert-channel


ABC-Channel: A Novel Blockchain-based Covert Channel
