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Semantic communication represents a promising technique towards reducing communication costs, especially when dealing with image segmentation, but it still lacks a balance between computational efficiency and bandwidth requirements while…

Networking and Internet Architecture · Computer Science 2025-07-22 Ebrahim Abu-Helalah , Jordi Serra , Jordi Perez-Romero

Unmanned Aerial Vehicles (UAVs) have emerged as a key enabler technology for data collection from Internet of Things (IoT) devices. However, effective data collection is challenged by resource constraints and the need for real-time…

Robotics · Computer Science 2026-05-12 Assane Sankara , Daniel Bonilla Licea , Hajar El Hammouti

In the coming sixth generation (6G) communication era, to provide seamless and ubiquitous connections, the space-air-ground-sea integrated network (SAGSIN) is envisioned to address the challenges of communication coverage in areas with…

Information Theory · Computer Science 2024-06-18 Siqi Meng , Shaohua Wu , Jiaming Zhang , Junlan Cheng , Haibo Zhou , Qinyu Zhang

Networked low Earth orbit (LEO) satellite constellations enabled by inter-satellite links offer a promising path toward ubiquitous broadband non-terrestrial services. However, fast orbital motion induces frequent scheduling updates and…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Yuchen Zhang , Eva Lagunas , Symeon Chatzinotas , Tareq Y. Al-Naffouri

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

Semantic communication has emerged as a promising approach for improving efficient transmission in the next generation of wireless networks. Inspired by the success of semantic communication in different areas, we aim to provide a new…

Image and Video Processing · Electrical Eng. & Systems 2023-12-11 Zhenguo Zhang , Qianqian Yang , Shibo He , Jiming Chen

Wirelessly-connected robotic systems empower robots with real-time intelligence by leveraging remote computing resources for decision-making. However, the data exchange between robots and edge servers often overwhelms communication links,…

Robotics · Computer Science 2026-04-28 Wenchao Wu , Shutong Chen , Wenjie Liu , Zhibo Pang , Yansha Deng , Robert Schober

Direct-to-cell (D2C) satellite communications have emerged as a crucial alternative to terrestrial communications in the sixth generation (6G) mobile networks due to their wide-area coverage capability. Unlike human-oriented communications,…

Signal Processing · Electrical Eng. & Systems 2026-03-03 Daohong Shen , Wei Feng , Yunfei Chen , Yongxu Zhu , Jinxia Cheng , Dapeng Wang , Shi Jin

Upon the arrival of emerging devices, including Extended Reality (XR) and Unmanned Aerial Vehicles (UAVs), the traditional communication framework is approaching Shannon's physical capacity limit and fails to guarantee the massive amount of…

Systems and Control · Electrical Eng. & Systems 2024-04-09 Hui Zhou , Yansha Deng , Xiaonan Liu , Nikolaos Pappas , Arumugam Nallanathan

In this work, we propose a realistic semantic network called seq2seq-SC, designed to be compatible with 5G NR and capable of working with generalized text datasets using a pre-trained language model. The goal is to achieve unprecedented…

Signal Processing · Electrical Eng. & Systems 2023-10-19 Ju-Hyung Lee , Dong-Ho Lee , Eunsoo Sheen , Thomas Choi , Jay Pujara

The extension of wide area wireless connectivity to low-earth orbit (LEO) satellite communication systems demands a fresh look at the effects of in-orbit base stations, sky-to-ground propagation, and cell planning. A multi-beam LEO…

Signal Processing · Electrical Eng. & Systems 2022-07-15 Eunsun Kim , Ian P. Roberts , Jeffrey G. Andrews

The synthetic aperture radar (SAR) technology enables satellites to efficiently acquire high quality images of the Earth surface. This generates significant communication traffic from the satellite to the ground stations, and, thus, image…

Optimization and Control · Mathematics 2015-02-17 Daniel Karapetyan , Snezana Mitrovic-Minic , Krishna T. Malladi , Abraham P. Punnen

Semantic communication has emerged as a promising technology to break the Shannon limit by extracting the meaning of source data and sending relevant semantic information only. However, some mobile devices may have limited computation and…

Information Theory · Computer Science 2023-11-17 Tianyu Liu , Changsheng You , Zeyang Hu , Chenyu Wu , Yi Gong , Kaibin Huang

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

Existing communication systems are mainly built based on Shannon's information theory which deliberately ignores the semantic aspects of communication. The recent iteration of wireless technology, the so-called 5G and beyond, promises to…

Networking and Internet Architecture · Computer Science 2021-06-24 Guangming Shi , Yong Xiao , Yingyu Li , Xuemei Xie

Underwater wireless communications face significant challenges due to propagation constraints, limiting the effectiveness of traditional radio and optical technologies. Long-range acoustic communications support distances up to a few…

Networking and Internet Architecture · Computer Science 2025-07-01 João Pedro Loureiro , Patrícia Delgado , Tomás Feliciano Ribeiro , Filipe B. Teixeira , Rui Campos

Tightly integrated low earth orbit (LEO) satellite communications and terrestrial integrated sensing and communication (ISAC) are expected to be key novel aspects of the 6G era. Spectrum sharing between satellite and terrestrial cellular…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Jeongju Jee , Jeffrey G. Andrews

Efficient video transmission is essential for seamless communication and collaboration within the visually-driven digital landscape. To achieve low latency and high-quality video transmission over a bandwidth-constrained noisy wireless…

Image and Video Processing · Electrical Eng. & Systems 2025-03-03 Nan Li , Yansha Deng , Dusit Niyato

Low Earth Orbit (LEO) satellite communication is a critical component in the development of sixth generation (6G) networks. The integration of massive multiple-input multiple-output (MIMO) technology is being actively explored to enhance…

Signal Processing · Electrical Eng. & Systems 2025-11-03 Huibin Zhou , Xinrui Gong , Christos G. Tsinos , Li You , Xiqi Gao , Björn Ottersten

Low earth orbit (LEO) satellite communication systems have gained increasing attention as a crucial supplement to terrestrial wireless networks due to their extensive coverage area. This letter presents a novel system design for LEO…

Information Theory · Computer Science 2024-03-12 Shining Lin , Jiancheng An , Lu Gan , Mérouane Debbah , Chau Yuen