中继辅助语义通信中的语义泄漏与隐私保护

Computer Science > Networking and Internet Architecture

arXiv:2606.31973v1 (cs) [Submitted on 30 Jun 2026]

Title:Semantic Leakage and Privacy Preservation in Relay-Assisted Semantic Communications

Authors:Yalin E. Sagduyu, Tugba Erpek, Aylin Yener, Sennur Ulukus View a PDF of the paper titled Semantic Leakage and Privacy Preservation in Relay-Assisted Semantic Communications, by Yalin E. Sagduyu and 3 other authors View PDF HTML (experimental)

Abstract:Semantic communication (SemCom) has emerged as a promising paradigm in which the transmission of task-relevant information is prioritized over raw data, enabling efficient and robust communication under resource and channel constraints. In this paper, the privacy implications of relay-assisted SemCom systems are studied, where the intermediate relay node operates directly on learned latent representations. It is shown that the relay, even without access to source data, can reliably infer semantic meaning and reconstruct signals with performance comparable to that of the legitimate receiver, revealing a fundamental privacy vulnerability of semantic representations. To address this issue, an iterative adversarial training framework is proposed in which a strong, adaptively trained eavesdropper at the relay is explicitly accounted for. The proposed approach alternates between optimizing the relay's eavesdropping function and the legitimate system, resulting in representations that preserve semantic decoding performance at the intended receiver while degrading semantic inference at the relay. The semantic accuracy gap between the legitimate receiver and the eavesdropper is significantly enlarged across channel conditions. Importantly, this protection is achieved in a stealthy manner, with high reconstruction fidelity maintained while semantic leakage is selectively suppressed.

Subjects:	Networking and Internet Architecture (cs.NI); Cryptography and Security (cs.CR); Information Theory (cs.IT); Machine Learning (cs.LG); Signal Processing (eess.SP)
Cite as:	arXiv:2606.31973 [cs.NI]
	(or arXiv:2606.31973v1 [cs.NI] for this version)
	https://doi.org/10.48550/arXiv.2606.31973 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Tugba Erpek [view email]
[v1] Tue, 30 Jun 2026 17:15:23 UTC (314 KB)
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