对抗干扰多径网络中的隐身通信
Stealthy Communication over Adversarially Jammed Multipath Networks
摘要：
我们考虑的问题，隐形通信的多路径网络中存在一个积极的对手。多路径网络由多个并行的无噪声链路组成，对手能够窃听和干扰链路的子集。我们考虑两种类型的干扰-擦除干扰和重写干扰。我们要求通信既隐蔽又可靠，即，攻击者应该无法检测是否正在进行有意义的通信，而合法的接收者应该同时以高概率重构来自发送者的任何潜在消息。我们提供了对抗性擦除和对抗性覆盖干扰下的隐身能力的内部界限。
英文摘要：
We consider the problem of stealthy communication over a multipath network in the presence of an active adversary. The multipath network consists of multiple parallel noiseless links, and the adversary is able to eavesdrop and jam a subset of links. We consider two types of jamming---erasure jamming and overwrite jamming. We require the communication to be both stealthy and reliable, i.e., the adversary should be unable to detect whether or not meaningful communication is taking place, while the legitimate receiver should reconstruct any potential messages from the transmitter with high probability simultaneously. We provide inner bounds on the stealthy capacities under both adversarial erasure and adversarial overwrite jamming.
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