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AI for Wireless Communication Systems: From Semantic Communications to 6G

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Information Theory, Probability and Statistics".

Deadline for manuscript submissions: 31 January 2027 | Viewed by 710

Editors

School of Information Science and Engineering, Southeast University, Nanjing 210096, China
Interests: information theory; semantic communication; channel coding; wireless communications; machine learning
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Guest Editor
Guangzhou Institute of Technology, Xidian University, Guangzhou 510555, China
Interests: information theory; semantic communication; channel coding; combinatorics

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Guest Editor
School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: distributed source coding; cell-free massive MIMO; integrated sensing and communication; deep learning; generative model

Special Issue Information

Dear Colleagues,

This Special Issue on "AI for Wireless Communication Systems: From Semantic Communications to 6G" explores the transformative intersection of artificial intelligence (AI) and next-generation wireless networks. As the research focus shifts toward 6G, networks are now required to support emerging architectures, such as cell-free massive MIMO (CF-mMIMO), integrated sensing and communication (ISAC), and reconfigurable intelligent surface (RIS), advancements which introduce new requirements for massive connectivity, low latency, and strict reliability.

Fully unlocking the potential of these complex physical layer architectures requires a paradigm shift in how information is processed and valued. This is where AI serves as the fundamental enabler for the transition toward semantic communications. Moving beyond the traditional Shannon framework of bit-exact delivery, semantic-aware networks focus on only extracting and transmitting the meaning, intent, or specific features required for a downstream task. Deep learning architectures facilitate this by encoding relevant semantic information at the source and recovering knowledge at the destination. By optimizing the transmission for specific tasks rather than raw data reconstruction, this task-oriented approach is essential in offering a sustainable solution for next-generation networks.

This Special Issue seeks the submission of original research exploring how machine learning models can be leveraged to design these semantic frameworks and integrate them seamlessly with 6G physical and network layers.

Dr. Yinfei Xu
Dr. Qi Cao
Dr. Shu Xu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • semantic communications
  • semantic-aware networks
  • 6G wireless communications
  • task-oriented communications
  • deep learning
  • AI-native network architecture

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Published Papers (1 paper)

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Research

23 pages, 1305 KB  
Article
Semantic Communication for Intelligent Transmission and Recognition of High-Resolution Satellite Images in Satellite-to-Ground Systems
by Jiaxin Liu, Qiwang Chen and Yijun Chen
Entropy 2026, 28(7), 803; https://doi.org/10.3390/e28070803 - 14 Jul 2026
Viewed by 415
Abstract
Very-high-resolution (VHR) multispectral satellite imagery contains rich semantic information, yet its real-time transmission is constrained by limited satellite-to-ground bandwidth and dynamic channel impairments. Conventional communication schemes prioritize pixel-level reconstruction, resulting in large transmission overhead and poor robustness under unfavorable channel conditions. To address [...] Read more.
Very-high-resolution (VHR) multispectral satellite imagery contains rich semantic information, yet its real-time transmission is constrained by limited satellite-to-ground bandwidth and dynamic channel impairments. Conventional communication schemes prioritize pixel-level reconstruction, resulting in large transmission overhead and poor robustness under unfavorable channel conditions. To address these challenges, an end-to-end task-oriented semantic communication framework for remote sensing downstream recognition tasks, termed Semantic Transmission Architecture for Remote Sensing (STARS), is proposed. To improve transmission efficiency for very-high-resolution remote sensing images with highly redundant background regions, a Semantic Feature Reweighting Module (SFRM) is introduced to dynamically evaluate token-level semantic importance and adaptively allocate transmission resources to task-critical features. Furthermore, vector quantization and a practical digital transmission chain are jointly integrated to achieve efficient semantic compression, while dynamic channel variations are incorporated during training to improve robustness under fading channel conditions. Experimental results on the DOTA dataset demonstrate that STARS consistently outperforms conventional schemes and existing semantic baselines under Rician fading channels, validating the effectiveness of semantic-aware feature allocation for bandwidth-efficient VHR imagery transmission. Full article
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