Two Lower Bounds on the Secrecy Capacity of the Action-dependent Dirty Paper Wiretap Channel
2019 Ninth International Workshop on Signal Design and its Applications in Communications (IWSDA)(2019)
摘要
In this paper, we study the state-dependent Gaussian wiretap channel with action encoder and noncausal state at the transmitter, which is also called the action-dependent dirty paper wiretap channel. Two lower bounds on the secrecy capacity of this model are provided, and we find that the two bounds have their advantages and disadvantages, i.e., none of the two always performs better than the other. In addition, we find that taking action on the state helps to increase the achievable secrecy rate of the dirty paper wiretap channel.
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关键词
Action-dependent state,dirty paper channel,secrecy capacity,wiretap channel
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