论文标题
确保联合通信和感应
Secure Joint Communication and Sensing
论文作者
论文摘要
这项工作考虑了减轻共同执行这两个操作的系统中通信与传感之间信息泄漏的问题。具体而言,研究了一个离散的无内存依赖性广播通道模型,其中(i)反馈的存在使发射器能够传达信息,同时执行通道状态估计; (ii)其中一位接收器被视为应估算状态的窃听者,但应忽略一部分传输信息。该模型将安全通信的安全性背后的挑战抽象,如果人们将通道状态视为敏感属性,例如位置。对于独立和相同分布的状态,完美的输出反馈,以及一部分传输消息的秘密时,就会开发保密区域的部分表征。当广播通道物理衰减或反向物理衰减时,表征是精确的。部分表征还扩展到应将整个传输消息保密的情况。与基于分离的安全通信和状态感应方法相比,联合方法的好处通过二元联合通信和传感模型说明。
This work considers the problem of mitigating information leakage between communication and sensing in systems jointly performing both operations. Specifically, a discrete memoryless state-dependent broadcast channel model is studied in which (i) the presence of feedback enables a transmitter to convey information, while simultaneously performing channel state estimation; (ii) one of the receivers is treated as an eavesdropper whose state should be estimated but which should remain oblivious to part of the transmitted information. The model abstracts the challenges behind security for joint communication and sensing if one views the channel state as a sensitive attribute, e.g., location. For independent and identically distributed states, perfect output feedback, and when part of the transmitted message should be kept secret, a partial characterization of the secrecy-distortion region is developed. The characterization is exact when the broadcast channel is either physically-degraded or reversely-physically-degraded. The partial characterization is also extended to the situation in which the entire transmitted message should be kept secret. The benefits of a joint approach compared to separation-based secure communication and state-sensing methods are illustrated with a binary joint communication and sensing model.