arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2312.00535eess.SPcs.LG
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基于RIS的空中语义通信——一种衍射深度神经网络方法

RIS-Based On-the-Air Semantic Communications -- a Diffractional Deep Neural Network Approach

Harbin Institute of Technology(哈尔滨工业大学);Harbin Engineering University(哈尔滨工程大学);National Cheng Kung University(国立成功大学)

Shuyi Chen, Yingzhe Hui, Yifan Qin, Yueyi Yuan, Weixiao Meng, Xuewen Luo, Hsiao-Hwa Chen

AI总结:

本文提出基于可重构智能表面的空中语义通信新范式,利用衍射深度神经网络在波域实现光速、低功耗、多任务并行的语义计算与传输。

摘要:

语义通信由于专注于语义信息而非比特级信息,在实现更高传输效率方面具有优势,近年来受到了广泛关注。然而,当前基于人工智能的语义通信方法需要数字硬件来实现。随着可重构智能表面(RIS)的快速发展,一种被称为空中衍射深度神经网络(D²NN)的新方法可以被用于在波域上实现语义通信。本文提出了一种基于RIS的空中语义通信新范式,其中计算过程在无线信号穿过RIS时自然发生。我们给出了系统模型,并讨论了该方案的数据流和控制流,随后以图像传输为例进行了性能分析。与传统的基于硬件的方法相比,基于RIS的语义通信具有光速计算、低计算功耗以及同时处理多任务的能力等吸引人的特性。

英文摘要:

Semantic communication has gained significant attention recently due to its advantages in achieving higher transmission efficiency by focusing on semantic information instead of bit-level information. However, current AI-based semantic communication methods require digital hardware for implementation. With the rapid advancement on reconfigurable intelligence surfaces (RISs), a new approach called on-the-air diffractional deep neural networks (D$^2$NN) can be utilized to enable semantic communications on the wave domain. This paper proposes a new paradigm of RIS-based on-the-air semantic communications, where the computational process occurs inherently as wireless signals pass through RISs. We present the system model and discuss the data and control flows of this scheme, followed by a performance analysis using image transmission as an example. In comparison to traditional hardware-based approaches, RIS-based semantic communications offer appealing features, such as light-speed computation, low computational power requirements, and the ability to handle multiple tasks simultaneously.

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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