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Unmanned Aerial Vehicles (UAVs) are increasingly adopted in modern communication networks. However, challenges in decision-making and digital modeling continue to impede their rapid advancement. Reinforcement Learning (RL) algorithms face…

Machine Learning · Computer Science 2025-01-13 Yousef Emami , Hao Zhou , Luis Almeida , Kai Li

Reliable Terahertz (THz) links are necessary for outdoor point-to-point communication with the exponential growth of wireless data traffic. This study presents a modified Monte Carlo simulation procedure for estimating THz link attenuation…

Terahertz (THz) communication is a promising technology for future wireless networks due to its ultra-wide bandwidth. However, THz signals suffer from severe attenuation and poor diffraction capability, making it vulnerable to blocking…

Information Theory · Computer Science 2022-02-16 Wanming Hao , Fuhui Zhou , Ming Zeng , Octavia A. Dobre , Naofal Al-Dhahir

Discrete diffusion models have emerged as a powerful class of models and a promising route to fast language generation, but practical implementations typically rely on factored reverse transitions ignoring cross-token dependencies and…

Machine Learning · Computer Science 2026-05-14 Dario Shariatian , Alain Durmus , Umut Simsekli , Stefano Peluchetti

We study the compressive diffusion strategies over distributed networks based on the diffusion implementation and adaptive extraction of the information from the compressed diffusion data. We demonstrate that one can achieve a comparable…

Systems and Control · Computer Science 2015-06-18 Muhammed O. Sayin , Suleyman S. Kozat

High-fidelity numerical simulations of chaotic, high dimensional nonlinear dynamical systems are computationally expensive, necessitating the development of efficient surrogate models. Most surrogate models for such systems are…

Machine Learning · Computer Science 2026-03-16 Dibyajyoti Chakraborty , Hojin Kim , Romit Maulik

Terahertz (THz) communication signals are susceptible to severe degradation because of the molecular interaction with the atmosphere in the form of subsequent absorption and re-radiation. Recently, reconfigurable intelligent surface (RIS)…

Signal Processing · Electrical Eng. & Systems 2022-10-04 Anish Pradhan , Mohamed A. Abd-Elmagid , Harpreet S. Dhillon , Andreas F. Molisch

We introduce Diffusion Augmented Agents (DAAG), a novel framework that leverages large language models, vision language models, and diffusion models to improve sample efficiency and transfer learning in reinforcement learning for embodied…

Machine Learning · Computer Science 2024-07-31 Norman Di Palo , Leonard Hasenclever , Jan Humplik , Arunkumar Byravan

The prospect of ultra-massive multiple-input multiple-output (UM-MIMO) technology to combat the distance problem at the Terahertz (THz)-band is considered. It is well-known that the very large available bandwidths at THz frequencies come at…

Signal Processing · Electrical Eng. & Systems 2019-07-16 Hadi Sarieddeen , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Terahertz (THz) communication ensures the provision of ultra-high data rates owing to its abundant bandwidth; however, its performance is impeded by complex propagation mechanisms. In particular, molecular absorption induces a temporal…

Signal Processing · Electrical Eng. & Systems 2025-05-02 Ahmed Naeem , Saira Rafique , Abuu B. Kihero , Huseyin Arslan

Terahertz (THz) band is considered a promising candidate to meet the high-throughput requirement for future sixth-generation (6G) wireless communications due to its ultrawide bandwidth. However, due to the high penetration loss at…

Signal Processing · Electrical Eng. & Systems 2025-10-30 Caihao Weng , Yuqing Guo , Bowen Zhao , Ying Wang , Wen Chen , Zhendong Li

Terahertz (THz) communication is considered as an attractive way to overcome the bandwidth bottleneck and satisfy the ever-increasing capacity demand in the future. Due to the high directivity and propagation loss of THz waves, a massive…

Information Theory · Computer Science 2021-10-05 Boyu Ning , Zhi Chen , Zhongbao Tian , Chong Han , Shaoqian Li

The future sixth-generation (6G) of wireless networks is expected to surpass its predecessors by offering ubiquitous coverage through integrated air-ground facility deployments in both communication and computing domains. In this network,…

Networking and Internet Architecture · Computer Science 2024-08-12 Shuhang Zhang , Qingyu Liu , Ke Chen , Boya Di , Hongliang Zhang , Wenhan Yang , Dusit Niyato , Zhu Han , H. Vincent Poor

The explosive growth of artificial intelligence (AI) workloads in modern data centers demands a radical transformation of interconnect architectures. Traditional copper and optical wiring face fundamental challenges in latency, power…

Information Theory · Computer Science 2026-01-05 Chong Han , Mingjie Zhu , Wenqi Zhao , Ziming Yu , Guolong Huang , Guangjian Wang , Wen Tong , Wenjun Zhang

Millimeter-wave (mmWave) and terahertz (THz) communication systems typically deploy large antenna arrays to guarantee sufficient receive signal power. The beam training overhead associated with these arrays, however, make it hard for these…

Signal Processing · Electrical Eng. & Systems 2022-05-25 Gouranga Charan , Andrew Hredzak , Christian Stoddard , Benjamin Berrey , Madhav Seth , Hector Nunez , Ahmed Alkhateeb

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…

Information Theory · Computer Science 2025-05-27 Chong Huang , Xuyang Chen , Gaojie Chen , Pei Xiao , Geoffrey Ye Li , Wei Huang

Pre-trained stable diffusion models (SD) have shown great advances in visual correspondence. In this paper, we investigate the capabilities of Diffusion Transformers (DiTs) for accurate dense correspondence. Distinct from SD, DiTs exhibit a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Chaofan Gan , Yuanpeng Tu , Xi Chen , Tieyuan Chen , Yuxi Li , Mehrtash Harandi , Weiyao Lin

Terahertz (THz) band owning the abundant multi-ten-GHz bandwidth is capable to support Terabit-per-second wireless communications, which is a pillar technology for 6G and beyond systems. With sub-millimeter-long antennas, ultra-massive (UM)…

Information Theory · Computer Science 2023-08-04 Chong Han , Yuhang Chen , Longfei Yan , Zhi Chen , Linglong Dai

Accurate and rapid prediction of flow-fields is crucial for aerodynamic design. This work proposes a discontinuous Galerkin method (DGM) whose performance enhances with increasing data, for rapid simulation of transonic flow around airfoils…

Fluid Dynamics · Physics 2024-11-15 Yiwei Feng , Lili Lv , Weixiong Yuan , Liang Xu , Tiegang Liu

The future networks pose intense demands for intelligent and customized designs to cope with the surging network scale, dynamically time-varying environments, diverse user requirements, and complicated manual configuration. However,…

Networking and Internet Architecture · Computer Science 2023-08-01 Yudong Huang , Minrui Xu , Xinyuan Zhang , Dusit Niyato , Zehui Xiong , Shuo Wang , Tao Huang