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Semantic Communication (SemCom) has emerged as a promising paradigm for 6G networks, aiming to extract and transmit task-relevant information rather than minimizing bit errors. However, applying SemCom to realistic downlink Multi-User…

Machine Learning · Computer Science 2026-02-17 Chongyang Li , Tianqian Zhang , Shouyin Liu

In this paper, we propose a signal-aligned network coding (SNC) scheme for K-user time-varying multiple-input multiple-output (MIMO) interference channels with limited receiver cooperation. We assume that the receivers are connected to a…

Information Theory · Computer Science 2023-03-22 Tse-Tin Chan , Tat-Ming Lok

In this letter, we propose a semantic communication scheme for wireless relay channels based on Autoencoder, named AESC, which encodes and decodes sentences from the semantic dimension. The Autoencoder module provides anti-noise performance…

Information Theory · Computer Science 2021-11-22 Xinlai Luo , Zhiyong Chen , Bin Xia , Jiangzhou Wang

Deep learning based joint source-channel coding (JSCC) has demonstrated significant advancements in data reconstruction compared to separate source-channel coding (SSCC). This superiority arises from the suboptimality of SSCC when dealing…

Machine Learning · Computer Science 2023-08-23 Matin Mortaheb , Mohammad A. Amir Khojastepour , Srimat T. Chakradhar , Sennur Ulukus

With the recent advancements in edge artificial intelligence (AI), future sixth-generation (6G) networks need to support new AI tasks such as classification and clustering apart from data recovery. Motivated by the success of deep learning,…

Networking and Internet Architecture · Computer Science 2023-04-06 Zhonghao Lyu , Guangxu Zhu , Jie Xu , Bo Ai , Shuguang Cui

Earth observation satellites generate large amounts of real-time data for monitoring and managing time-critical events such as disaster relief missions. This presents a major challenge for satellite-to-ground communications operating under…

Networking and Internet Architecture · Computer Science 2025-03-19 Sheikh Salman Hassan , Loc X. Nguyen , Yan Kyaw Tun , Zhu Han , Choong Seon Hong

Semantic communication represents a promising roadmap toward achieving end-to-end communication with reduced communication overhead and an enhanced user experience. The integration of semantic concepts with wireless communications presents…

Information Theory · Computer Science 2023-07-04 Hossein Rezaei , Thushan Sivalingam , Nandana Rajatheva

The integration of machine learning (ML) has significantly enhanced the capabilities of Earth Observation (EO) systems by enabling the extraction of actionable insights from complex datasets. However, the performance of data-driven EO…

Recent deep learning methods have led to increased interest in solving high-efficiency end-to-end transmission problems. These methods, we call nonlinear transform source-channel coding (NTSCC), extract the semantic latent features of…

Signal Processing · Electrical Eng. & Systems 2023-08-21 Sixian Wang , Jincheng Dai , Xiaoqi Qin , Zhongwei Si , Kai Niu , Ping Zhang

Semantic communication is a new paradigm that exploits deep learning models to enable end-to-end communications processes, and recent studies have shown that it can achieve better noise resiliency compared with traditional communication…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Wenyu Zhang , Kaiyuan Bai , Sherali Zeadally , Haijun Zhang , Hua Shao , Hui Ma , Victor C. M. Leung

Diffusion models (DMs) have achieved remarkable success across various domains owing to their strong generative and denoising capabilities. Meanwhile, semantic communication based on neural joint source-channel coding (JSCC) has emerged as…

Signal Processing · Electrical Eng. & Systems 2026-03-25 Yoon Huh , Jeongho Kang , Wan Choi

Semantic communications, which focus on transmitting the semantic meaning of data, have been proposed as a novel paradigm for achieving efficient and relevant communication. Meanwhile, non-orthogonal multiple access (NOMA) enhances spectral…

Signal Processing · Electrical Eng. & Systems 2025-08-20 Ximing Xie , Fang Fang , Lan Zhang , Xianbin Wang

This paper presents a Semantic Feature Multiple Access (SFMA) framework for multi-user semantic communication in downlink wireless systems. By extending SwinJSCC to a two-user superimposition paradigm, SFMA enables simultaneous semantic…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Jiaxiang Wang , Zhaohui Yang , Mingzhe Chen , Mohammad Shikh-Bahaei

Digital twin (DT) technology offers transformative potential for vehicular networks, enabling high-fidelity virtual representations for enhanced safety and automation. However, seamless DT synchronization in dynamic environments faces…

Information Theory · Computer Science 2026-04-08 Yinchao Yang , Yahao Ding , Jiaxiang Wang , Zhaohui Yang , Chen Zhu , Zhaoyang Zhang , Dusit Niyato , Mohammad Shikh-Bahaei

With the ever-increasing user density and quality of service (QoS) demand,5G networks with limited spectrum resources are facing massive access challenges. To address these challenges, in this paper, we propose a novel discrete semantic…

Signal Processing · Electrical Eng. & Systems 2024-07-12 Shuai Ma , Chuanhui Zhang , Bin Shen , Youlong Wu , Hang Li , Shiyin Li , Guangming Shi , Naofal Al-Dhahir

This paper focuses on a typical uplink transmission scenario over multiple-input multiple-output multiple access channel (MIMO-MAC) and thus propose a multi-user learnable CSI fusion semantic communication (MU-LCFSC) framework. It…

Networking and Internet Architecture · Computer Science 2025-04-14 Bingyan Xie , Yongpeng Wu , Feng Shu , Jiangzhou Wang , Wenjun Zhang

In task-oriented semantic communications, the transmitters are designed to deliver task-related semantic information rather than every signal bit to receivers, which alleviates the spectrum pressure by reducing network traffic loads.…

Signal Processing · Electrical Eng. & Systems 2025-01-06 Hong Chen , Fang Fang , Xianbin Wang

Semantic communications have shown promising advancements by optimizing source and channel coding jointly. However, the dynamics of these systems remain understudied, limiting research and performance gains. Inspired by the robustness of…

Signal Processing · Electrical Eng. & Systems 2026-04-29 Hanju Yoo , Linglong Dai , Songkuk Kim , Chan-Byoung Chae

Traditional joint source-channel coding employs static learned semantic representations that cannot dynamically adapt to evolving source distributions. Shared semantic memories between transmitter and receiver can potentially enable…

Signal Processing · Electrical Eng. & Systems 2025-11-14 Karim Nasreddine , Christo Kurisummoottil Thomas , Walid Saad

The Space-Air-Ground-Sea integrated network calls for more robust and secure transmission techniques against jamming. In this paper, we propose a textual semantic transmission framework for robust transmission, which utilizes the advanced…

Computation and Language · Computer Science 2023-07-25 Shicong Liu , Zhen Gao , Gaojie Chen , Yu Su , Lu Peng
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