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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

From the perspective of joint source-channel coding (JSCC), there has been significant research on utilizing semantic communication, which inherently possesses analog characteristics, within digital device environments. However, a…

Signal Processing · Electrical Eng. & Systems 2025-02-04 Yoon Huh , Hyowoon Seo , Wan Choi

The fundamental limit of Semantic Communications (joint source-channel coding) is established when the transmission needs to be kept covert from an external warden. We derive information-theoretic achievability and matching converse results…

Information Theory · Computer Science 2024-06-21 Abdelaziz Bounhar , Mireille Sarkiss , Michèle Wigger

Multi-task learning (MTL) is an efficient way to improve the performance of related tasks by sharing knowledge. However, most existing MTL networks run on a single end and are not suitable for collaborative intelligence (CI) scenarios. In…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Mengyang Wang , Zhicong Zhang , Jiahui Li , Mengyao Ma , Xiaopeng Fan

The increased throughput brought by MIMO technology relies on the knowledge of channel state information (CSI) acquired in the base station (BS). To make the CSI feedback overhead affordable for the evolution of MIMO technology (e.g.,…

Information Theory · Computer Science 2022-04-08 Jialong Xu , Bo Ai , Ning Wang , Wei Chen

Deep learning driven joint source-channel coding (JSCC) for wireless image or video transmission, also called DeepJSCC, has been a topic of interest recently with very promising results. The idea is to map similar source samples to nearby…

Cryptography and Security · Computer Science 2022-09-01 Tze-Yang Tung , Deniz Gunduz

We consider a joint source channel coding (JSCC) problem in which we desire to transmit an arbitrary memoryless source over an arbitrary additive channel. We propose a mismatched coding architecture that consists of Gaussian codebooks for…

Information Theory · Computer Science 2018-09-03 Lin Zhou , Vincent Y. F. Tan , Mehul Motani

We consider the problem of joint source and channel coding of structured data such as natural language over a noisy channel. The typical approach to this problem in both theory and practice involves performing source coding to first…

Information Theory · Computer Science 2018-02-21 Nariman Farsad , Milind Rao , Andrea Goldsmith

In this paper, we propose a high-efficiency deep joint source-channel coding (JSCC) method for video transmission based on conditional coding with asymmetric context. The conditional coding-based neural video compression requires to predict…

Image and Video Processing · Electrical Eng. & Systems 2026-01-13 Xuechen Chen , Junting Li , Chuang Chen , Hairong Lin , Yishen Li

This paper investigates an information-theoretic model of secure semantic-aware communication. For this purpose, we consider the lossy joint source-channel coding (JSCC) of a memoryless semantic source transmitted over a memoryless wiretap…

Information Theory · Computer Science 2026-05-26 Denis Kozlov , Mahtab Mirmohseni , Rahim Tafazolli

By integrating recent advances in large language models (LLMs) and generative models into the emerging semantic communication (SC) paradigm, in this article we put forward to a novel framework of language-oriented semantic communication…

Signal Processing · Electrical Eng. & Systems 2023-09-21 Hyelin Nam , Jihong Park , Jinho Choi , Mehdi Bennis , Seong-Lyun Kim

Semantic communication (SemCom) has been deemed as a promising communication paradigm to break through the bottleneck of traditional communications. Nonetheless, most of the existing works focus more on point-to-point communication…

Signal Processing · Electrical Eng. & Systems 2023-12-05 Zhilin Lu , Rongpeng Li , Ming Lei , Chan Wang , Zhifeng Zhao , Honggang Zhang

Recent advances in deep learning (DL)-based joint source-channel coding (JSCC) have enabled efficient semantic communication in dynamic wireless environments. Among these approaches, vector quantization (VQ)-based JSCC effectively maps…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Eunsoo Kim , Yoon Huh , Wan Choi

Small satellites are widely used today as cost effective means to perform Earth observation and other tasks that generate large amounts of high-dimensional data, such as multi-spectral imagery. These satellites typically operate in low…

Networking and Internet Architecture · Computer Science 2024-03-12 Olga Kondrateva , Stefan Dietzel , Björn Scheuermann

The advent of large language models (LLMs) has significantly advanced artificial intelligence (AI) in software engineering (SE), with source code embeddings playing a crucial role in tasks such as source code clone detection and source code…

Software Engineering · Computer Science 2025-06-04 Zixiang Xian , Chenhui Cui , Rubing Huang , Chunrong Fang , Zhenyu Chen

Significant progress has been made in wireless Joint Source-Channel Coding (JSCC) using deep learning techniques. The latest DL-based image JSCC methods have demonstrated exceptional performance during transmission, while also avoiding…

Signal Processing · Electrical Eng. & Systems 2023-08-29 Hongjie Yuan , Weizhang Xu , Yuhuan Wang , Xingxing Wang

Large language models (LLMs) are increasingly used as semantic encoders and decoders in semantic communication. However, current LLM based systems mostly remain monolithic: a single prompted model, or a tightly coupled transmitter/receiver…

Systems and Control · Electrical Eng. & Systems 2026-05-05 Jingwen Fu , Ming Xiao , Mikael Skoglund

The surge in connected devices in 6G with typical complex tasks requiring multi-user cooperation, such as smart agriculture and smart cities, poses significant challenges to unsustainable traditional communication. Fortunately, the booming…

Networking and Internet Architecture · Computer Science 2025-02-24 Wanting Yang , Zehui Xiong , Shiwen Mao , Tony Q. S. Quek , Ping Zhang , Merouane Debbah , Rahim Tafazolli

Recent works have shown that modern machine learning techniques can provide an alternative approach to the long-standing joint source-channel coding (JSCC) problem. Very promising initial results, superior to popular digital schemes that…

Image and Video Processing · Electrical Eng. & Systems 2022-06-17 Tze-Yang Tung , David Burth Kurka , Mikolaj Jankowski , Deniz Gunduz

In recent years, the Transformer architecture has achieved outstanding performance across a wide range of tasks and modalities. Token is the unified input and output representation in Transformer-based models, which has become a fundamental…

Signal Processing · Electrical Eng. & Systems 2025-11-20 Jingkai Ying , Zhijin Qin , Yulong Feng , Liejun Wang , Xiaoming Tao