This paper studies the hierarchical joint source-channel coding with information leakage constraint in the first-phase reconstruction and distortion constraints. The receiver's access to the data varies and is evaluated by the quality of the side information. Due to the consideration of channel capacity limitation or the efficiency of the system performance, the encoder may send some additional information in Phase 1 that can only be decoded in Phase 2 with higher-quality side information. While this can optimize the overall performance, the additional information causes excessive information leakage. We provide general inner and outer bounds for the conditions such that a given distortion-leakage pair $(D_1,D_2,L)$ is achievable, together with a capacity-achieving condition.
翻译:本文研究了第一相位重建中具有信息泄露约束的分层联合信源信道编码问题,并考虑了失真约束。接收端对数据的访问能力存在差异,并通过侧信息质量进行评估。鉴于信道容量限制或系统性能效率的考量,编码器可能会在第一相位发送部分额外信息,这些信息仅在第二相位结合更高质量的侧信息才能解码。虽然此举能优化整体性能,但额外信息会导致过度的信息泄露。我们给出了一般性的内界和外界条件,用于判定给定失真-泄露对$(D_1,D_2,L)$的可实现性,并进一步给出了容量达到条件。