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In this paper, we propose a novel diffusion-decision transformer (D2T) architecture to optimize the beamforming strategies for intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) communication systems. The…

信号处理 · 电气工程与系统科学 2024-07-01 Jie Zhang , Jun Li , Zhe Wang , Yu Han , Long Shi , Bin Cao

Integrating unmanned aerial vehicles (UAVs) into existing cellular networks encounters lots of challenges, among which one of the most striking concerns is how to achieve harmonious coexistence of aerial transceivers, inter alia, UAVs, and…

信号处理 · 电气工程与系统科学 2022-12-13 Yuanjian Li , A. Hamid Aghvami

Prediction of wireless channels and their statistics is a fundamental procedure for ensuring performance guarantees in wireless systems. Statistical radio maps powered by Gaussian processes (GPs) offer flexible, non-parametric frameworks,…

信息论 · 计算机科学 2026-03-26 Robin J. Williams , Mahmoud Saad Abouamer , Petar Popovski

Owing to the unique advantages of low cost and controllability, reconfigurable intelligent surface (RIS) is a promising candidate to address the blockage issue in millimeter wave (mmWave) communication systems, consequently has captured…

信息论 · 计算机科学 2022-02-24 Yuqian Zhu , Zhu Bo , Ming Li , Yang Liu , Qian Liu , Zheng Chang , Yulin Hu

Intelligent omni-surface (IOS) is a promising technique to enhance the capacity of wireless networks, by reflecting and refracting the incident signal simultaneously. Traditional IOS configuration schemes, relying on all sub-channels'…

网络与互联网体系结构 · 计算机科学 2024-12-30 Xiaowen Ye , Xianghao Yu , Liqun Fu

Recent years witnessed a remarkable increase in the availability of data and computing resources in communication networks. This contributed to the rise of data-driven over model-driven algorithms for network automation. This paper…

网络与互联网体系结构 · 计算机科学 2023-01-30 Marco Skocaj , Lorenzo Mario Amorosa , Giorgio Ghinamo , Giuliano Muratore , Davide Micheli , Flavio Zabini , Roberto Verdone

This paper investigates the transformative potential of digital twin (DT) technology for non-terrestrial networks (NTNs). NTNs, comprising airborne and space-borne elements, face unique challenges in network control, management, and…

网络与互联网体系结构 · 计算机科学 2024-11-20 Hayder Al-Hraishawi , Madyan Alsenwi , Junaid ur Rehman , Eva Lagunas , Symeon Chatzinotas

The dangers of adversarial attacks on Uncrewed Aerial Vehicle (UAV) agents operating in public are increasing. Adopting AI-based techniques and, more specifically, Deep Learning (DL) approaches to control and guide these UAVs can be…

机器学习 · 计算机科学 2023-06-21 Thomas Hickling , Nabil Aouf , Phillippa Spencer

With the high flexibility of supporting resource-intensive and time-sensitive applications, unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) is proposed as an innovational paradigm to support the mobile users (MUs). As a…

信号处理 · 电气工程与系统科学 2023-02-20 Wenshuai Liu , Bin Li , Wancheng Xie , Yueyue Dai , Zesong Fei

Training effective artificial intelligence models for telecommunications is challenging due to the scarcity of deployment-specific data. Real data collection is expensive, and available datasets often fail to capture the unique operational…

信号处理 · 电气工程与系统科学 2026-05-28 Clement Ruah , Houssem Sifaou , Osvaldo Simeone , Bashir M. Al-Hashimi

Non-terrestrial networks (NTNs) with low-earth orbit (LEO) satellites have been regarded as promising remedies to support global ubiquitous wireless services. Due to the rapid mobility of LEO satellite, inter-beam/satellite handovers happen…

信号处理 · 电气工程与系统科学 2024-10-16 Yang Cao , Shao-Yu Lien , Ying-Chang Liang , Dusit Niyato , Xuemin , Shen

In an RF-powered backscatter cognitive radio network, multiple secondary users communicate with a secondary gateway by backscattering or harvesting energy and actively transmitting their data depending on the primary channel state. To…

机器学习 · 计算机科学 2018-10-11 Tran The Anh , Nguyen Cong Luong , Dusit Niyato , Ying-Chang Liang , Dong In Kim

Wireless digital twins can be leveraged to provide site-specific synthetic channel information through precise physical modeling and signal propagation simulations. This can help reduce the overhead of channel state information (CSI)…

信号处理 · 电气工程与系统科学 2026-04-21 Hao Luo , Saeed R. Khosravirad , Ahmed Alkhateeb

In future wireless systems of beyond 5G and 6G, addressing diverse applications with varying quality requirements is essential. Open Radio Access Network (O-RAN) architectures offer the potential for dynamic resource adaptation based on…

网络与互联网体系结构 · 计算机科学 2024-10-07 Huan X. Nguyen , Kexuan Sun , Duc To , Quoc-Tuan Vien , Tuan Anh Le

In this work, we consider a mobile edge computing system with both ultra-reliable and low-latency communications services and delay tolerant services. We aim to minimize the normalized energy consumption, defined as the energy consumption…

信号处理 · 电气工程与系统科学 2019-07-03 Rui Dong , Changyang She , Wibowo Hardjawana , Yonghui Li , Branka Vucetic

The synchronization of digital twins (DT) serves as the cornerstone for effective operation of the DT framework. However, the limitations of channel capacity can greatly affect the data transmission efficiency of wireless communication.…

新兴技术 · 计算机科学 2025-03-07 Bin Li , Haichen Cai , Lei Liu , Zesong Fei

In this paper, we introduce a novel framework consisting of hybrid bit-level and generative semantic communications for efficient downlink image transmission within space-air-ground integrated networks (SAGINs). The proposed model comprises…

信息论 · 计算机科学 2025-05-27 Chong Huang , Xuyang Chen , Gaojie Chen , Pei Xiao , Geoffrey Ye Li , Wei Huang

Compressive sensing is a promising solution for the channel estimation in multiple-input multiple-output (MIMO) systems with large antenna arrays and constrained hardware. Utilizing site-specific channel data from real-world systems, deep…

信号处理 · 电气工程与系统科学 2024-05-14 Hao Luo , Ahmed Alkhateeb

This study focuses on a multi-user massive multiple-input multiple-output (MU-mMIMO) system by incorporating an unmanned aerial vehicle (UAV) as a decode-and-forward (DF) relay between the base station (BS) and multiple Internet-of-Things…

信号处理 · 电气工程与系统科学 2024-04-11 MohammadMahdi Ghadaksaz , Mobeen Mahmood , Tho Le-Ngoc

This work examines the use of two-way training to efficiently discriminate the channel estimation performances at a legitimate receiver (LR) and an unauthorized receiver (UR) in a multiple-input multiple-output (MIMO) wireless system. This…

信息论 · 计算机科学 2015-06-12 Chao-Wei Huang , Tsung-Hui Chang , Xiangyun Zhou , Y. -W. Peter Hong