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We describe the design and implementation of an autonomous adaptive software agent that addresses the practical problem of observing undersampled, periodic, time-varying phenomena using a network of HTN-compliant robotic telescopes. The…

Astrophysics · Physics 2009-11-13 Eric S. Saunders , Tim Naylor , Alasdair Allan

Large pre-trained speech models are widely used as the de-facto paradigm, especially in scenarios when there is a limited amount of labeled data available. However, finetuning all parameters from the self-supervised learned model can be…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-16 Nanxin Chen , Izhak Shafran , Yu Zhang , Chung-Cheng Chiu , Hagen Soltau , James Qin , Yonghui Wu

Pinching antenna (PA) is a flexible antenna composed of a waveguide and multiple dielectric particles, which is capable of reconfiguring wireless channels intelligently in line-of-sight links. By leveraging the unique features of PAs, we…

Information Theory · Computer Science 2025-02-19 Tianwei Hou , Yuanwei Liu , Arumugam Nallanathan

This paper investigates the performance of a pinching-antenna (PA) system with a signal waveguide and multiple pinching antennas to serve users distributed across multiple rooms. The performance of the system is evaluated through a…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Yanyu Cheng , Hao Li , Zhen Wang , Zhiguo Ding

Opportunistic spectrum access is based on channel state information and can lead to important performance improvements for the underlying communication systems. On the other hand adaptive modulation is also based on channel state…

Networking and Internet Architecture · Computer Science 2012-11-26 F. Foukalas , G. T. Karetsos , G. K. Karagiannidis

Subseasonal forecasting -- predicting temperature and precipitation 2 to 6 weeks ahead -- is critical for effective water allocation, wildfire management, and drought and flood mitigation. Recent international research efforts have advanced…

Test Time Adaptation (TTA) addresses the problem of distribution shift by adapting a pretrained model to a new domain during inference. When faced with challenging shifts, most methods collapse and perform worse than the original pretrained…

Machine Learning · Computer Science 2025-02-25 Sabyasachi Sahoo , Mostafa ElAraby , Jonas Ngnawe , Yann Pequignot , Frederic Precioso , Christian Gagne

Parameter efficient adaptation methods have become a key mechanism to train large pre-trained models for downstream tasks. However, their per-task parameter overhead is considered still high when the number of downstream tasks to adapt for…

Audio and Speech Processing · Electrical Eng. & Systems 2024-04-01 Tsendsuren Munkhdalai , Youzheng Chen , Khe Chai Sim , Fadi Biadsy , Tara Sainath , Pedro Moreno Mengibar

The emerging pinching antenna (PA) technology enables flexible antenna positioning for creating line-of-sight (LoS) links, thus offering substantial potential to facilitate ambient signal-based backscatter communication (BSC). This paper…

Signal Processing · Electrical Eng. & Systems 2025-12-15 Yulei Wang , Yalin Liu , Yaru Fu , Yuanwei Liu

This paper investigates the energy efficiency optimization for movable antenna (MA) systems by considering the time delay and energy consumption introduced by MA movement. We first derive the upper bound on energy efficiency for a…

Information Theory · Computer Science 2025-08-21 Jingze Ding , Zijian Zhou , Yuping Zhao , Bingli Jiao

Self-adaptive systems are capable of adjusting their behavior to cope with the changes in environment and itself. These changes may cause runtime uncertainty, which refers to the system state of failing to achieve appropriate…

Software Engineering · Computer Science 2017-04-11 Zhuoqun Yang , Wei Zhang , Haiyan Zhao , Zhi Jin

By exploiting the degree of freedom on the altitude, unmanned aerial vehicle (UAV) communication can provide ubiquitous communication for future wireless networks. In the case of concurrent transmission of multiple UAVs, the directional…

Systems and Control · Electrical Eng. & Systems 2023-07-25 Weihao Wang , Zesong Fei , Jing Guo , Salman Durrani , Halim Yanikomeroglu

Pinching antenna system (PAS) serves as a groundbreaking paradigm that enhances wireless communications by flexibly adjusting the position of pinching antenna (PA) and establishing a strong line-of-sight (LoS) link, thereby reducing the…

Signal Processing · Electrical Eng. & Systems 2025-11-06 Kunrui Cao , Jingyu Chen , Panagiotis D. Diamantoulakis , Lei Zhou , Xingwang Li , Yuanwei Liu , George K. Karagiannidis

This paper proposes a novel localization framework underpinned by a pinching-antenna (PA) system, in which the target location is estimated using received signal strength (RSS) measurements obtained from downlink signals transmitted by the…

Signal Processing · Electrical Eng. & Systems 2025-11-20 Jiajun He , Xidong Mu , Hien Quoc Ngo , Michail Matthaiou

This paper studies multi-antenna-aided covert communications coexisting with randomly located wardens and interferers, considering both centralized and distributed antenna systems (CAS/DAS). The throughput performance of the covert…

Information Theory · Computer Science 2019-02-20 Tong-Xing Zheng , Hui-Ming Wang , Derrick Wing Kwan Ng , Jinhong Yuan

A sequential decision process in which an adaptive radar system repeatedly interacts with a finite-state target channel is studied. The radar is capable of passively sensing the spectrum at regular intervals, which provides side information…

Information Theory · Computer Science 2021-10-15 Charles E. Thornton , R. Michael Buehrer , Anthony F. Martone

In this paper, we examine the fundamental trade-off between radiated power and achieved throughput in wireless multi-carrier, multiple-input and multiple-output (MIMO) systems that vary with time in an unpredictable fashion (e.g. due to…

Information Theory · Computer Science 2015-03-10 Ioannis Stiakogiannakis , Panayotis Mertikopoulos , Corinne Touati

The atmosphere is chaotic. This fundamental property of the climate system makes forecasting weather incredibly challenging: it's impossible to expect weather models to ever provide perfect predictions of the Earth system beyond timescales…

Atmospheric and Oceanic Physics · Physics 2020-12-15 Elizabeth A. Barnes , Kirsten Mayer , Benjamin Toms , Zane Martin , Emily Gordon

Real-time applications (RTAs) require low delays and impose a significant challenge to Wi-Fi. In Wi-Fi, high delays are often caused by waiting for the channel to become idle. This problem can be solved with Parameterized Spatial Reuse…

Networking and Internet Architecture · Computer Science 2024-07-18 Kirill Chemrov , Dmitry Bankov , Andrey Lyakhov , Evgeny Khorov

Continual Test-Time Adaptation (CTA) is a challenging task that aims to adapt a source pre-trained model to continually changing target domains. In the CTA setting, a model does not know when the target domain changes, thus facing a drastic…

Machine Learning · Computer Science 2024-03-05 Inseop Chung , Kyomin Hwang , Jayeon Yoo , Nojun Kwak