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Integrated sensing and communication (ISAC) within sub-THz frequencies is crucial for future air-ground networks, but unique propagation characteristics and hardware limitations present challenges in optimizing ISAC performance while…

Signal Processing · Electrical Eng. & Systems 2025-06-17 Zonghui Yang , Shijian Gao , Xiang Cheng , Liuqing Yang

Integrated sensing and communication (ISAC) has emerged as a key enabler for next-generation wireless networks, supporting advanced applications such as high-precision localization and environment reconstruction. Cooperative ISAC (CoISAC)…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Lixiang Lian , Chuanqi Bai , Yihan Xu , Huanyu Dong , Rui Cheng , Shunqing Zhang

In this paper, an IRS-aided integrated sensing and communications (ISAC) system operating in the terahertz (THz) band is proposed to maximize the system capacity. Transmit beamforming and phase-shift design are transformed into a universal…

Information Theory · Computer Science 2022-04-12 Xiangnan Liu , Haijun Zhang , Keping Long , Mingyu Zhou , Yonghui Li , H. Vincent Poor

This paper introduces Polynomial Graphical Lasso (PGL), a new approach to learning graph structures from nodal signals. Our key contribution lies in modeling the signals as Gaussian and stationary on the graph, enabling the development of a…

Signal Processing · Electrical Eng. & Systems 2024-04-04 Andrei Buciulea , Jiaxi Ying , Antonio G. Marques , Daniel P. Palomar

Network topology optimization (NTO) via busbar splitting can mitigate transmission grid congestion and reduce redispatch costs. However, solving this mixed-integer nonlinear problem for large-scale systems in near-real-time is currently…

Artificial Intelligence · Computer Science 2026-03-16 Ali Rajaei , Peter Palensky , Jochen L. Cremer

This paper introduces a novel Multi-Agent Reinforcement Learning (MARL) framework to enhance integrated sensing and communication (ISAC) networks using unmanned aerial vehicle (UAV) swarms as sensing radars. By framing the positioning and…

Signal Processing · Electrical Eng. & Systems 2025-01-14 Obed Morrison Atsu , Salmane Naoumi , Roberto Bomfin , Marwa Chafii

Deep learning for distribution grid optimization can be advocated as a promising solution for near-optimal yet timely inverter dispatch. The principle is to train a deep neural network (DNN) to predict the solutions of an optimal power flow…

Optimization and Control · Mathematics 2020-07-09 Manish K. Singh , Sarthak Gupta , Vassilis Kekatos , Guido Cavraro , Andrey Bernstein

Intelligent reflecting surface (IRS)-assisted full-duplex (FD) terahertz (THz) communication systems have emerged as a promising paradigm to satisfy the escalating demand for ultra-high data rates and spectral efficiency in future wireless…

Information Theory · Computer Science 2025-10-30 Chi Qiu , Wen Chen , Qingqing Wu , Fen Hou , Wanming Hao , Ruiqi Liu , Derrick Wing Kwan Ng

We study the problem of assigning operations in a dataflow graph to devices to minimize execution time in a work-conserving system, with emphasis on complex machine learning workloads. Prior learning-based methods often struggle due to…

Machine Learning · Computer Science 2025-05-30 Xinyu Yao , Daniel Bourgeois , Abhinav Jain , Yuxin Tang , Jiawen Yao , Zhimin Ding , Arlei Silva , Chris Jermaine

Decentralized learning (DL) enables collaborative machine learning (ML) without a central server, making it suitable for settings where training data cannot be centrally hosted. We introduce Mosaic Learning, a DL framework that decomposes…

When designing large-scale distributed controllers, the information-sharing constraints between sub-controllers, as defined by a communication topology interconnecting them, are as important as the controller itself. Controllers implemented…

Systems and Control · Electrical Eng. & Systems 2021-04-29 Fengjun Yang , Nikolai Matni

Integrating radio-sensing functionalities into future cell-free (CF) wireless networks promises efficient resource utilization and facilitates the seamless roll-out of applications such as public safety and smart infrastructure. While the…

Signal Processing · Electrical Eng. & Systems 2025-01-20 Leonardo Leyva , Daniel Castanheira , Adão Silva , Atílio Gameiro

The Integrated Sensing and Communications (ISAC) paradigm is anticipated to be a cornerstone of the upcoming 6G networks. In order to optimize the use of wireless resources, 6G ISAC systems need to harness the communication data payload…

Information Theory · Computer Science 2025-02-18 Fan Liu , Ya-Feng Liu , Yuanhao Cui , Christos Masouros , Jie Xu , Tony Xiao Han , Stefano Buzzi , Yonina C. Eldar , Shi Jin

Temporal graph learning is crucial for dynamic networks where nodes and edges evolve over time and new nodes continuously join the system. Inductive representation learning in such settings faces two major challenges: effectively…

Machine Learning · Computer Science 2025-08-21 Jiafeng Xiong , Rizos Sakellariou

Continual graph learning (CGL) aims to learn from dynamically evolving graphs while mitigating catastrophic forgetting. Existing CGL approaches typically adopt a task-based formulation, where the data stream is partitioned into a sequence…

Machine Learning · Computer Science 2026-05-15 Guiquan Sun , Xikun Zhang , Jingchao Ni , Dongjin Song

Nowadays, large and complex deep learning (DL) models are increasingly trained in a distributed manner across multiple worker machines, in which extensive communications between workers pose serious scaling problems. In this article, we…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-11-10 Shaohuai Shi , Zhenheng Tang , Xiaowen Chu , Chengjian Liu , Wei Wang , Bo Li

In closed-loop distributed multi-sensor integrated sensing and communication (ISAC) systems, performance often hinges on transmitting high-dimensional sensor observations over rate-limited networks. In this paper, we first present a general…

Signal Processing · Electrical Eng. & Systems 2025-12-18 Guangjin Pan , Zhixing Li , Ayça Özçelikkale , Christian Häger , Musa Furkan Keskin , Henk Wymeersch

Bilevel optimization refers to scenarios whereby the optimal solution of a lower-level energy function serves as input features to an upper-level objective of interest. These optimal features typically depend on tunable parameters of the…

Machine Learning · Computer Science 2024-03-08 Amber Yijia Zheng , Tong He , Yixuan Qiu , Minjie Wang , David Wipf

The bottleneck of distributed edge learning (DEL) over wireless has shifted from computing to communication, primarily the aggregation-averaging (Agg-Avg) process of DEL. The existing transmission control protocol (TCP)-based data…

Networking and Internet Architecture · Computer Science 2022-11-18 Shiva Raj Pokhrel , Jinho Choi , Anwar Walid

Demand flexibility is increasingly important for power grids, in light of growing penetration of renewable generation. Careful coordination of thermostatically controlled loads (TCLs) can potentially modulate energy demand, decrease…

Systems and Control · Electrical Eng. & Systems 2020-10-07 Bingqing Chen , Weiran Yao , Jonathan Francis , Mario Bergés