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High-throughput satellite communication systems are growing in strategic importance thanks to their role in delivering broadband services to mobile platforms and residences and/or businesses in rural and remote regions globally. Although…

Information Theory · Computer Science 2022-08-09 Van-Phuc Bui , Trinh Van Chien , Eva Lagunas , Joël Grotz , Symeon Chatzinotas , Björn Ottersten

In this paper, we propose a novel semantic-aided image communication framework for supporting the compatibility with practical separation-based coding architectures. Particularly, the deep learning (DL)-based joint source-channel coding…

Information Theory · Computer Science 2025-05-01 Mingkai Xu , Yongpeng Wu , Yuxuan Shi , Xiang-Gen Xia , Merouane Debbah , Wenjun Zhang , Ping Zhang

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

In-band full-duplex (IBFD) is a theoretically effective solution to increase the overall throughput for the future wireless communications system by enabling transmission and reception over the same time-frequency resources. However,…

Information Theory · Computer Science 2024-08-02 Kai Niu , Zijian Liang , Chao Dong , Jincheng Dai , Zhongwei Si , Ping Zhang

The performance of transmission schemes is heavily influenced by the wireless channel, which is typically considered an uncontrollable factor. However, the introduction of reconfigurable intelligent surfaces (RISs) to wireless…

Information Theory · Computer Science 2023-05-05 Weicong Chen , Chao-Kai Wen , Xiao Li , Shi Jin

Although semantic communication (SC) has shown its potential in efficiently transmitting multimodal data such as texts, speeches and images, SC for videos has focused primarily on pixel-level reconstruction. However, these SC systems may be…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Jiangyuan Guo , Wei Chen , Yuxuan Sun , Jialong Xu , Bo Ai

The expansion of sixth-generation (6G) wireless networks into space introduces technical challenges that conventional bit-oriented communication approaches cannot efficiently address, including intermittent connectivity, severe latency,…

Networking and Internet Architecture · Computer Science 2025-04-01 Hanlin Cai , Houtianfu Wang , Haofan Dong , Ozgur B. Akan

3D semantic segmentation is a critical task in many real-world applications, such as autonomous driving, robotics, and mixed reality. However, the task is extremely challenging due to ambiguities coming from the unstructured, sparse, and…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Adriano Cardace , Pierluigi Zama Ramirez , Samuele Salti , Luigi Di Stefano

This paper focuses on advancing outdoor wireless systems to better support ubiquitous extended reality (XR) applications, and close the gap with current indoor wireless transmission capabilities. We propose a hybrid knowledge-data driven…

Signal Processing · Electrical Eng. & Systems 2023-07-24 Zhen Gao , Shicong Liu , Yu Su , Zhongxiang Li , Dezhi Zheng

Traditional communication systems focus on the transmission process, and the context-dependent meaning has been ignored. The fact that 5G system has approached Shannon limit and the increasing amount of data will cause communication…

Signal Processing · Electrical Eng. & Systems 2022-02-22 Chen Dong , Haotai Liang , Xiaodong Xu , Shujun Han , Bizhu Wang , Ping Zhang

In future 6G wireless networks, semantic and effectiveness aspects of communications will play a fundamental role, incorporating meaning and relevance into transmissions. However, obstacles arise when devices employ diverse languages,…

Networking and Internet Architecture · Computer Science 2025-04-10 Simone Fiorellino , Claudio Battiloro , Emilio Calvanese Strinati , Paolo Di Lorenzo

The Internet of Vehicles (IoV) transforms the transportation ecosystem promising pervasive connectivity and data-driven approaches. Deep learning and generative Artificial Intelligence (AI) have the potential to significantly enhance the…

Networking and Internet Architecture · Computer Science 2025-07-04 Hao Liu , Bo Yang , Zhiwen Yu , Xuelin Cao , George C. Alexandropoulos , Yan Zhang , Chau Yuen

Semantic communication emphasizes the transmission of meaning rather than raw symbols. It offers a promising solution to alleviate network congestion and improve transmission efficiency. In this paper, we propose a wireless image…

Signal Processing · Electrical Eng. & Systems 2025-07-17 Chen Zhu , Siyun Liang , Zhouxiang Zhao , Jianrong Bao , Zhaohui Yang , Zhaoyang Zhang , Dusit Niyato

High-speed optical wireless communication can address the exponential growth in data traffic. Adaptive beamforming customized for the target location is crucial, but existing solutions such as liquidcrystal spatial light modulators and…

Networking and Internet Architecture · Computer Science 2023-04-27 Chao Li , Yiwen Zhang , Xinda Yan , Yuzhe Wang , Xuebing Zhang , Jian Cui , Lei Zhu , Juhao Li , Zilun Li , Shaohua Yu , Zizheng Cao , A. M. J. Koonen , Chia Wei Hsu

Semantic communications offer promising prospects for enhancing data transmission efficiency. However, existing schemes have predominantly concentrated on point-to-point transmissions. In this paper, we aim to investigate the validity of…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Yanhu Wang , Shuaishuai Guo , Anming Dong , Hui Zhao

The last seventy years have witnessed the transition of communication from Shannon's theoretical concept to current high-efficient practical systems. Classical communication systems address the capability-deficiency issue mainly by…

Information Theory · Computer Science 2022-03-31 Kai Niu , Jincheng Dai , Shengshi Yao , Sixian Wang , Zhongwei Si , Xiaoqi Qin , Ping Zhang

Deep Joint Source-Channel Coding (Deep-JSCC) has emerged as a promising semantic communication approach for wireless image transmission by jointly optimizing source and channel coding using deep learning techniques. However, traditional…

Networking and Internet Architecture · Computer Science 2025-07-29 Avi Deb Raha , Apurba Adhikary , Mrityunjoy Gain , Yumin Park , Walid Saad , Choong Seon Hong

Although existing semantic communication systems have achieved great success, they have not considered that the channel is time-varying wherein deep fading occurs occasionally. Moreover, the importance of each semantic feature differs from…

Signal Processing · Electrical Eng. & Systems 2023-05-08 Kequan Zhou , Guangyi Zhang , Yunlong Cai , Qiyu Hu , Guanding Yu

Collaborative perception, an emerging paradigm in autonomous driving, has been introduced to mitigate the limitations of single-vehicle systems, such as limited sensor range and occlusion. To improve the robustness of inter-vehicle data…

Signal Processing · Electrical Eng. & Systems 2025-11-26 Mingyi Lu , Guowei Liu , Le Liang , Chongtao Guo , Hao Ye , Shi Jin

Semantic communications is considered as a promising technology to increase the efficiency of next-generation communication systems, particularly targeting human-machine and machine-type communications. In contrast to the source-agnostic…

Information Theory · Computer Science 2023-07-20 Jialong Xu , Tze-Yang Tung , Bo Ai , Wei Chen , Yuxuan Sun , Deniz Gunduz