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Fast and reliable wireless communication has become a critical demand in human life. In the case of mission-critical (MC) scenarios, for instance, when natural disasters strike, providing ubiquitous connectivity becomes challenging by using…

Networking and Internet Architecture · Computer Science 2023-05-29 Hongyi Zhang , Zhiqiang Qi , Jingya Li , Anders Aronsson , Jan Bosch , Helena Holmström Olsson

Managing connectivity in integrated satellite-terrestrial vehicular networks is critical for 6G, yet is challenged by dynamic conditions and partial observability. This letter introduces the Multi-Agent Actor-Critic with Satellite-Aided…

Networking and Internet Architecture · Computer Science 2025-12-25 Ibrahim Althamary , Chen-Fu Chou , Chih-Wei Huang

Traditional machine learning techniques have achieved great success in improving data-rate performance and reducing latency in millimeter wave (mmWave) communications. However, these methods still face two key challenges: (i) their reliance…

Information Theory · Computer Science 2025-02-14 Yuwen Cao , Wenqin Lu , Tomoaki Ohtsuki , Setareh Maghsudi , Xue-Qin Jiang , Charalampos C. Tsimenidis

Millimeter-wave (mm-Wave) cellular systems are a promising option for a very high data rate communication because of the large bandwidth available at mm-Wave frequencies. Due to the large path-loss exponent in the mm-Wave range of the…

Information Theory · Computer Science 2015-11-06 Saeid Haghighatshoar , Giuseppe Caire

In recent years, self-supervised learning has been studied to deal with the limitation of available labeled-dataset. Among the major components of self-supervised learning, the data augmentation pipeline is one key factor in enhancing the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Van-Nhiem Tran , Chi-En Huang , Shen-Hsuan Liu , Kai-Lin Yang , Timothy Ko , Yung-Hui Li

Capturing high-frequency data concerning the condition of complex systems, e.g. by acoustic monitoring, has become increasingly prevalent. Such high-frequency signals typically contain time dependencies ranging over different time scales…

Sound · Computer Science 2022-06-14 Gaetan Frusque , Olga Fink

A joint robust transmit/receive adaptive beamforming for multiple-input multipleoutput (MIMO) radar based on probability-constrained optimization approach is developed in the case of Gaussian and arbitrary distributed mismatch present in…

Information Theory · Computer Science 2016-03-03 Weiyu Zhang , Sergiy A. Vorobyov

As communication systems are foreseen to enable new services such as joint communication and sensing and utilize parts of the sub-THz spectrum, the design of novel waveforms that can support these emerging applications becomes increasingly…

Information Theory · Computer Science 2021-07-15 Fayçal Ait Aoudia , Jakob Hoydis

Switch-based hybrid network is a promising implementation for beamforming in large-scale millimetre wave (mmWave) antenna arrays. By fully exploiting the sparse nature of the mmWave channel, such hybrid beamforming reduces complexity and…

Signal Processing · Electrical Eng. & Systems 2019-09-02 Hamed Nosrati , Elias Aboutanios , Xiangrong Wang , David Smith

Intelligent reflecting surface (IRS) has been recently employed to reshape the wireless channels by controlling individual scattering elements' phase shifts, namely, passive beamforming. Due to the large size of scattering elements, the…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Shimin Gong , Jiaye Lin , Jinbei Zhang , Dusit Niyato , Dong In Kim , Mohsen Guizani

This paper investigates the transmit beamforming design for multiple-input multiple-output systems to support both multi-target localization and multi-user communications. To enhance the target localization performance, we derive the…

Signal Processing · Electrical Eng. & Systems 2025-01-14 Bo Tang , Da Li , Wenjun Wu , Astha Saini , Prabhu Babu , Petre Stoica

The use of satellite networks has increased significantly in recent years due to their advantages over purely terrestrial systems, such as higher availability and coverage. However, to effectively provide these services, satellite networks…

Machine Learning · Computer Science 2026-03-30 João Norberto , Ricardo Ferreira , Cláudia Soares

Few-shot learning (FSL) enables adaptation to new tasks with only limited training data. In wireless communications, channel environments can vary drastically; therefore, FSL techniques can quickly adjust transceiver accordingly. In this…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-10-20 Ouya Wang , Shenglong Zhou , Geoffrey Ye Li

Unsupervised pre-training methods for large vision models have shown to enhance performance on downstream supervised tasks. Developing similar techniques for satellite imagery presents significant opportunities as unlabelled data is…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Yezhen Cong , Samar Khanna , Chenlin Meng , Patrick Liu , Erik Rozi , Yutong He , Marshall Burke , David B. Lobell , Stefano Ermon

This study explores the synergy between rate-splitting multiple access (RSMA) and simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) as a unified framework to enable ubiquitous, intelligent, and resilient…

Signal Processing · Electrical Eng. & Systems 2025-10-21 Muhammad Asif , Asim Ihsan , Zhu Shoujin , Ali Ranjha , Xingwang Li , Khaled M. Rabie , Symeon Chatzinotas

The smart morphing wing aircraft (SMWA) is a highly adaptable platform that can be widely used for intelligent warfare due to its real-time variable structure. The flexible conformal array (FCA) is a vital detection component of SMWA, when…

Signal Processing · Electrical Eng. & Systems 2023-12-25 Yizhen Jia , Hui Chen , Wen-Qin Wang , Jie Cheng

Recently, the reconfigurable intelligent surface (RIS), benefited from the breakthrough on the fabrication of programmable meta-material, has been speculated as one of the key enabling technologies for the future six generation (6G)…

Information Theory · Computer Science 2022-06-23 Chongwen Huang , Ronghong Mo , Chau Yuen

High-mobility adaption and massive Multiple-input Multiple-output (MIMO) application are two primary evolving objectives for the next generation high speed train (HST) wireless communication system. In this paper, we consider how to design…

Information Theory · Computer Science 2017-04-12 Xuhong Chen , Jiaxun Lu , Tao Li , Pingyi Fan , Khaled Ben Letaief

The on-orbit intelligent planning of satellites swarm has attracted increasing attention from scholars. Especially in tasks such as the pursuit and attachment of non-cooperative satellites, satellites swarm must achieve coordinated…

Multiagent Systems · Computer Science 2024-06-04 yonghao Li

The design of satellite missions is currently undergoing a paradigm shift from the historical approach of individualised monolithic satellites towards distributed mission configurations, consisting of multiple small satellites. With a…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-08-14 Maria Hartmann , Grégoire Danoy , Pascal Bouvry
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