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Semantic communication is implemented based on shared background knowledge, but the sharing mechanism risks privacy leakage. In this letter, we propose an encrypted semantic communication system (ESCS) for privacy preserving, which combines…

Information Theory · Computer Science 2022-09-20 Xinlai Luo , Zhiyong Chen , Meixia Tao , Feng Yang

Semantic communication has emerged as a promising paradigm for next-generation wireless systems, improving the communication efficiency by transmitting high-level semantic features. However, reliance on unimodal representations can degrade…

Signal Processing · Electrical Eng. & Systems 2025-09-11 Haoran Chang , Mingzhe Chen , Huaxia Wang , Qianqian Zhang

Recently proliferated semantic communications (SC) aim at effectively transmitting the semantics conveyed by the source and accurately interpreting the meaning at the destination. While such a paradigm holds the promise of making wireless…

Cryptography and Security · Computer Science 2023-09-06 Xinghan Liu , Guoshun Nan , Qimei Cui , Zeju Li , Peiyuan Liu , Zebin Xing , Hanqing Mu , Xiaofeng Tao , Tony Q. S. Quek

Semantic communications conveys task-relevant meaning rather than focusing solely on message reconstruction, improving bandwidth efficiency and robustness for next-generation wireless systems. However, learned semantic representations can…

Networking and Internet Architecture · Computer Science 2026-01-01 Yalin E. Sagduyu , Tugba Erpek , Aylin Yener , Sennur Ulukus

Semantic communication is an increasingly popular framework for wireless image transmission due to its high communication efficiency. With the aid of the joint-source-and-channel (JSC) encoder implemented by neural network, semantic…

Information Theory · Computer Science 2022-12-02 Maojun Zhang , Yang Li , Zezhong Zhang , Guangxu Zhu , Caijun Zhong

Semantic communication has shown great potential in boosting the effectiveness and reliability of communications. However, its systems to date are mostly enabled by deep learning, which requires demanding computing resources. This article…

Information Theory · Computer Science 2023-12-04 Zhijin Qin , Jingkai Ying , Dingxi Yang , Hengjiang Wang , Xiaoming Tao

Semantic communication aims to facilitate purposeful information exchange among diverse intelligent entities, including humans, machines, and organisms. It emphasizes precise semantic transmission over data fidelity, striving for meaningful…

Cryptography and Security · Computer Science 2024-07-09 Yuntao Wang

Modern communications are usually designed to pursue a higher bit-level precision and fewer bits while transmitting a message. This article rethinks these two major features and introduces the concept and advantage of semantics that…

Signal Processing · Electrical Eng. & Systems 2022-06-09 Kun Lu , Qingyang Zhou , Rongpeng Li , Zhifeng Zhao , Xianfu Chen , Jianjun Wu , Honggang Zhang

Task-oriented semantic communication (ToSC) emerges as an innovative approach in the 6G landscape, characterized by the transmission of only vital information that is directly pertinent to a specific task. While ToSC offers an efficient…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Shuaishuai Guo , Anbang Zhang , Yanhu Wang , Chenyuan Feng , Tony Q. S. Quek

Semantic communication has emerged as a promising paradigm for enhancing communication efficiency in sixth-generation (6G) networks. However, the broadcast nature of wireless channels makes SemCom systems vulnerable to eavesdropping, which…

Information Theory · Computer Science 2025-04-01 Shunpu Tang , Yuhao Chen , Qianqian Yang , Ruichen Zhang , Dusit Niyato , Zhiguo Shi

Semantic communications learned on background knowledge bases (KBs) have been identified as a promising technology for communications between intelligent agents. Existing works assume that transceivers of semantic communications share the…

Networking and Internet Architecture · Computer Science 2023-01-10 Yanhu Wang , Shuaishuai Guo

Semantic communications have been envisioned as a potential technique that goes beyond Shannon paradigm. Unlike modern communications that provide bit-level security, the eaves-dropping of semantic communications poses a significant risk of…

Information Theory · Computer Science 2024-08-06 Yongkang Li , Zheng Shi , Han Hu , Yaru Fu , Hong Wang , Hongjiang Lei

Semantic communication (SC) goes beyond technical communication in which a given sequence of bits or symbols, often referred to as information, is be transmitted reliably over a noisy channel, regardless of its meaning. In SC, conveying the…

Information Theory · Computer Science 2022-09-02 Jinho Choi , Jihong Park

Existing deep learning-enabled semantic communication systems often rely on shared background knowledge between the transmitter and receiver that includes empirical data and their associated semantic information. In practice, the semantic…

Information Theory · Computer Science 2022-10-19 Hongwei Zhang , Shuo Shao , Meixia Tao , Xiaoyan Bi , Khaled B. Letaief

As semantic communication (SemCom) attracts growing attention as a novel communication paradigm, ensuring the security of transmitted semantic information over open wireless channels has become a critical issue. However, traditional…

Information Theory · Computer Science 2025-11-25 Weixuan Chen , Qianqian Yang , Shuo Shao , Zhiguo Shi , Jiming Chen , Xuemin , Shen

Speech emotion sensing in communication networks has a wide range of applications in real life. In these applications, voice data are transmitted from the user to the central server for storage, processing, and decision making. However,…

The rapid development of low-altitude economy has driven the proliferation of Unmanned Aerial Vehicle (UAV) applications, including logistics, inspection, and emergency response. However, transmitting high-volume image data from UAVs to…

Image and Video Processing · Electrical Eng. & Systems 2026-05-14 Kexin Zhang , Lixin Li , Yuna Yan , Xin Zhang , Wensheng Lin , Rui Li , Dongwei Zhao , Zhu Han

Semantic communication is envisioned as a promising technique to break through the Shannon limit. However, the existing semantic communication frameworks do not involve inference and error correction, which limits the achievable…

Artificial Intelligence · Computer Science 2022-02-25 Fuhui Zhou , Yihao Li , Xinyuan Zhang , Qihui Wu , Xianfu Lei , Rose Qingyang Hu

In this paper, a novel covert semantic communication framework is investigated. Within this framework, a server extracts and transmits the semantic information, i.e., the meaning of image data, to a user over several time slots. An attacker…

Artificial Intelligence · Computer Science 2025-08-12 Wenjing Zhang , Ye Hu , Tao Luo , Zhilong Zhang , Mingzhe Chen

The increasing popularity of applications like the Metaverse has led to the exploration of new, more effective ways of communication. Semantic communication, which focuses on the meaning behind transmitted information, represents a…

Social and Information Networks · Computer Science 2023-04-28 Wenhan Yu , Jun Zhao
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