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arXiv 2602.22934cs.ITmath.IT
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通过上下文依赖信道建模的视角进行语义通信

Semantic Communication Through the Lens of Context-Dependent Channel Modeling

Technische Universität Dresden(德累斯顿工业大学)

Javad Gholipour, Rafael F. Schaefer, Gerhard P. Fettweis

AI总结:

本文通过上下文依赖信道建模视角,研究了语义通信中语义噪声来源问题,分析了编码器的表示能力并推导了容量和速率结果。

摘要:

语义通信已成为下一代网络的一种有前景的范式,但仍然存在若干基本挑战。基于语义通信的概率模型,并利用上下文的概念,本文考察了语义通信问题的一个特定子类,其中语义噪声仅来源于语义信道,假设物理信道是理想的。为了建模这一系统,我们引入了一个虚拟的状态依赖信道,其中表示状态的上下文在塑造通信中起着关键作用。我们进一步分析了语义编码器的表示能力,并探讨了在存在语义噪声的情况下各种语义通信场景,推导出某些情况下的容量结果和可实现的速率。

英文摘要:

Semantic communication has emerged as a promising paradigm for next-generation networks, yet several fundamental challenges remain unresolved. Building on the probabilistic model of semantic communication and leveraging the concept of context, this paper examines a specific subclass of semantic communication problems, where semantic noise originates solely from the semantic channel, assuming an ideal physical channel. To model this system, we introduce a virtual state-dependent channel, where the state-representing context-plays a crucial role in shaping communication. We further analyze the representational capability of the semantic encoder and explore various semantic communication scenarios in the presence of semantic noise, deriving capacity results for some cases and achievable rates for others.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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