With the deployment of the fifth generation (5G) in many countries, people start to think about what the next-generation of wireless communications will be. The current communication technologies are already approaching the Shannon physical capacity limit with advanced encoding (decoding) and modulation techniques. On the other hand, artificial intelligence (AI) plays an increasingly important role in the evolution from traditional communication technologies to the future. Semantic communication is one of the emerging communication paradigms, which works based on its innovative “semantic-meaning passing” concept. The core of semantic communication is to extract the “meanings” of sent information at a transmitter, and with the help of a matched knowledge base (KB) between a transmitter and a receiver, the semantic information can be “interpreted” successfully at a receiver. Therefore, semantic communication essentially is a communication scheme based largely on AI. In this article, an overview of the latest deep learning (DL) and end-to-end (E2E) communication based semantic communications will be given and open issues that need to be tackled will be discussed explicitly.

Xuewen Luo

Hsiao-Hwa Chen

Qing Guo

IEEE Wireless Communications

IEEE 无线通信杂志处理所有媒体中与个性化、与位置无关的通信相关的所有技术和政策问题。论文重点介绍了诸如便携式电话、通信掌上电脑、协议、消息传递、通信和个性化流量过滤等主题。它还涵盖了频谱分配、产业结构和技术演进等政策问题。

The IEEE Wireless Communications magazine addresses all technical and policy issues related to personalized and location-independent communication across all media. The papers focus on topics such as portable phones, communication PDAs, protocols, messaging, communication, and personalized traffic filtering. It also covers policy issues related to spectrum allocation, industry structure, and technological evolution.

《IEEE Wireless Communications》杂志涵盖了与个性化和位置无关的通信技术及政策问题。文章重点讨论便携式电话、通信掌上电脑、协议、消息传递、通信和个性化流量过滤等主题。此外，杂志还涉及频谱分配、产业结构和技术演进等政策问题。

Category	Quartile
计算机科学	1
计算机科学, 计算机硬件	1
计算机科学, 计算机信息系统	1
计算机科学, 工程电子与电气	1
计算机科学, 电信学	1

Semantic Communications: Overview, Open Issues, and Future Research Directions

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