Hiding Communications in AWGN Channels and THz Band with Interference Uncertainty

26 Sep 2019 Liu Zhihong Liu Jiajia Zeng Yong Ma Jianfeng

Covert communication can prevent an adversary from knowing that a wireless transmission has occurred. In additive white Gaussian noise (AWGN) channels, a square root law is found that Alice can reliably and covertly transmit $\mathcal{O}(\sqrt{n})$ bits to Bob in $n$ channel uses... (read more)

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  • CRYPTOGRAPHY AND SECURITY