arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.09595eess.SP
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创新的语义通信系统

Innovative semantic communication system

Chen Dong, Haotai Liang, Xiaodong Xu, Shujun Han, Bizhu Wang, Ping Zhang

摘要:

传统的通信系统只关注信息的传输过程,而忽略了上下文相关的意义。5G系统已经接近香农极限,数据量的增加会造成通信瓶颈,如延迟问题的增加。受人工智能理解语义能力的启发,我们提出了一种新的通信范式--语义通信系统,它将人工智能与通信相结合。语义通信是基于Shannon和Weaver \cite{6197583}的通信的第二层,它保留了传输信息的语义特征,并在接收端恢复了信号,从而在不丢失重要信息的情况下压缩了通信流量。与其他语义通信系统不同的是,该系统不仅传输语义信息,而且传输语义解码器。此外,本文还提出了一种通用的语义度量方法来度量语义通信系统的质量。特别是,语义通信系统的图像,即AESC-I,设计,以验证新的范式的可行性。利用MNIST和Cifar 10数据集对我们的系统在加性高斯白噪声(AWGN)和多径衰落信道下进行了仿真。实验结果表明,DeepSC-I可以在相对较低的信噪比下有效地提取语义信息并重建图像。

英文摘要:

Traditional communication systems focus on the transmission process, and the context-dependent meaning has been ignored. The fact that 5G system has approached Shannon limit and the increasing amount of data will cause communication bottleneck, such as the increased delay problems. Inspired by the ability of artificial intelligence to understand semantics, we propose a new communication paradigm, which integrates artificial intelligence and communication, the semantic communication system. Semantic communication is at the second level of communication based on Shannon and Weaver\cite{6197583}, which retains the semantic features of the transmitted information and recovers the signal at the receiver, thus compressing the communication traffic without losing important information. Different from other semantic communication systems, the proposed system not only transmits semantic information but also transmits semantic decoder. In addition, a general semantic metrics is proposed to measure the quality of semantic communication system. In particular, the semantic communication system for image, namely AESC-I, is designed to verify the feasibility of the new paradigm. Simulations are conducted on our system with the additive white Gaussian noise (AWGN) and the multipath fading channel using MNIST and Cifar10 datasets. The experimental results show that DeepSC-I can effectively extract semantic information and reconstruct images at a relatively low SNR.

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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