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Real-time machine learning has recently attracted significant interest due to its potential to support instantaneous learning, adaptation, and decision making in a wide range of application domains, including self-driving vehicles,…

Machine Learning · Computer Science 2023-01-27 Yong Xiao , Xiaohan Zhang , Guangming Shi , Marwan Krunz , Diep N. Nguyen , Dinh Thai Hoang

In this paper, we investigate a novel digital network twin (DNT) assisted deep learning (DL) model training framework. In particular, we consider a physical network where a base station (BS) uses several antennas to serve multiple mobile…

Networking and Internet Architecture · Computer Science 2026-03-11 Hanzhi Yu , Hasan Farooq , Julien Forgeat , Shruti Bothe , Kristijonas Cyras , Md Moin Uddin Chowdhury , Mingzhe Chen

Distributed training is a solution to reduce DNN training time by splitting the task across multiple NPUs (e.g., GPU/TPU). However, distributed training adds communication overhead between the NPUs in order to synchronize the gradients…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-07-08 Saeed Rashidi , William Won , Sudarshan Srinivasan , Srinivas Sridharan , Tushar Krishna

Federated meta-learning (FML) has emerged as a promising paradigm to cope with the data limitation and heterogeneity challenges in today's edge learning arena. However, its performance is often limited by slow convergence and corresponding…

Machine Learning · Computer Science 2021-11-12 Sheng Yue , Ju Ren , Jiang Xin , Deyu Zhang , Yaoxue Zhang , Weihua Zhuang

Terahertz (THz) communication is widely considered as a key enabler for future 6G wireless systems. However, THz links are subject to high propagation losses and inter-symbol interference due to the frequency selectivity of the channel.…

Information Theory · Computer Science 2021-02-16 Konstantinos Dovelos , Michail Matthaiou , Hien Quoc Ngo , Boris Bellalta

Federated learning (FL) has been recognized as a viable distributed learning paradigm which trains a machine learning model collaboratively with massive mobile devices in the wireless edge while protecting user privacy. Although various…

Information Theory · Computer Science 2022-04-19 Yanmeng Wang , Yanqing Xu , Qingjiang Shi , Tsung-Hui Chang

Federated learning (FL) has found many successes in wireless networks; however, the implementation of FL has been hindered by the energy limitation of mobile devices (MDs) and the availability of training data at MDs. How to integrate…

Networking and Internet Architecture · Computer Science 2023-08-10 Mai Le , Dinh Thai Hoang , Diep N. Nguyen , Won-Joo Hwang , Quoc-Viet Pham

Orthogonal Frequency Division Multiplexing (OFDM) is the dominant waveform in modern wireless systems, but suffers performance degradation in high-mobility environments due to Doppler-induced inter-carrier interference and unreliable…

Information Theory · Computer Science 2026-04-17 S. Ashwin Hebbar , Sravan Kumar Ankireddy , Harshithanjani Athi , Brandon Nguyen , Pramod Viswanath , Hyeji Kim

Deep neural networks (DNNs) enhance the accuracy and efficiency of reconstructing key parameters from time-resolved photon arrival signals recorded by single-photon detectors. However, the performance of conventional backpropagation-based…

Machine Learning · Computer Science 2025-04-15 Zhenya Zang , Xingda Li , David Day Uei Li

High-mobility scenarios will be a critical part of 6G systems. Since the widely deployed orthogonal frequency division multiplexing (OFDM) waveform suffers from subcarrier orthogonality loss under severe Doppler spread, delay-Doppler domain…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Yiyan Ma , Bo Ai , Jinhong Yuan , Shuangyang Li , Qingqing Cheng , Zhenguo Shi , Weijie Yuan , Zhiqiang Wei , Akram Shafie , Guoyu Ma , Yunlong Lu , Mi Yang , Zhangdui Zhong

The popularity of algorithms based on Extreme Learning Machine (ELM), which can be used to train Single Layer Feedforward Neural Networks (SLFN), has increased in the past years. They have been successfully applied to a wide range of…

In this letter, we propose an energy-efficient split learning (SL) framework for fine-tuning large language models (LLMs) using geo-distributed personal data at the network edge, where LLMs are split and alternately across massive mobile…

Machine Learning · Computer Science 2025-01-15 Zuguang Li , Shaohua Wu , Liang Li , Songge Zhang

Beam training is one of the most important and challenging tasks in millimeter-wave and sub-terahertz communications. Novel transceiver architectures and signal processing techniques are required to avoid prohibitive training overhead when…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Veljko Boljanovic , Han Yan , Erfan Ghaderi , Deukhyoun Heo , Subhanshu Gupta , Danijela Cabric

Orthogonal Time Frequency Space (OTFS) is a novel framework that processes modulation symbols via a time-independent channel characterized by the delay-Doppler domain. The conventional waveform, orthogonal frequency division multiplexing…

Signal Processing · Electrical Eng. & Systems 2021-07-20 Zhou Zhou , Lingjia Liu , Jiarui Xu , Robert Calderbank

This work summarizes two ways to accomplish Time-Series (TS) tasks in today's Large Language Model (LLM) context: LLM-for-TS (model-centric) designs and trains a fundamental large model, or fine-tunes a pre-trained LLM for TS data;…

Computation and Language · Computer Science 2024-02-23 Chenxi Sun , Hongyan Li , Yaliang Li , Shenda Hong

In this paper, we study the use of robust model independent bounded extremum seeking (ES) feedback control to improve the robustness of deep reinforcement learning (DRL) controllers for a class of nonlinear time-varying systems. DRL has the…

Machine Learning · Computer Science 2026-03-11 Shaifalee Saxena , Alan Williams , Rafael Fierro , Alexander Scheinker

Next-generation wireless networks will rely on mmWave/sub-THz spectrum and extremely large antenna arrays (ELAAs). This will push their operation into the near field where far-field beam management degrades and beam training becomes more…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Zijun Wang , Anjali Omer , Jacob Chakareski , Nicholas Mastronarde , Rui Zhang

This paper considers a relay-assisted bidirectional cellular network where the base station (BS) communicates with each mobile station (MS) using OFDMA for both uplink and downlink. The goal is to improve the overall system performance by…

Information Theory · Computer Science 2010-09-03 Yuan Liu , Meixia Tao , Bin Li , Hui Shen

Federated learning (FL) has emerged as a promising framework for distributed learning, enabling collaborative model training without sharing private data. Existing wireless FL works primarily adopt two communication strategies: (1)…

Machine Learning · Computer Science 2026-04-16 Muhammad Faraz Ul Abrar , Nicolò Michelusi

Federated Learning (FL), as a privacy-preserving machine learning paradigm, trains a global model across devices without exposing local data. However, resource heterogeneity and inevitable stragglers in wireless networks severely impact the…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-11-20 Youquan Xian , Xiaoyun Gan , Chuanjian Yao , Dongcheng Li , Peng Wang , Peng Liu , Ying Zhao