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In this paper, a cooperative communication network based on energy-harvesting (EH) decode-and-forward (DF) relays that harvest energy from the ambience using buffers with harvest-store-use (HSU) architecture is considered. An opportunistic…

Information Theory · Computer Science 2022-06-14 Wannian An , Chen Dong , Xiaodong Xu , Chao Xu , Shujun Han , Lei Teng

Hybrid localization in GNSS-challenged environments using measured ranges and angles is becoming increasingly popular, in particular with the advent of multimodal communication systems. Here, we address the hybrid network localization…

Signal Processing · Electrical Eng. & Systems 2021-10-08 Claudia Soares , Filipa Valdeira , Joao Gomes

Convolutional neural networks (CNNs) have achieved high performance in synthetic aperture radar (SAR) automatic target recognition (ATR). However, the performance of CNNs depends heavily on a large amount of training data. The insufficiency…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Chenwei Wang , Xiaoyu Liu , Yulin Huang , Siyi Luo , Jifang Pei , Jianyu Yang , Deqing Mao

In this paper, we study the trajectory and resource optimization for lightweight rotary-wing unmanned aerial vehicles (UAVs) equipped with a synthetic aperture radar (SAR) system. The UAV's mission is to perform SAR imaging of a given area…

Signal Processing · Electrical Eng. & Systems 2022-07-14 Mohamed-Amine Lahmeri , Walid Ghanem , Christina Knill , Robert Schober

Search and rescue (SAR) missions require reliable search methods to locate survivors, especially in challenging or inaccessible environments. This is why introducing unmanned aerial vehicles (UAVs) can be of great help to enhance the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Stella Dumenčić , Luka Lanča , Karlo Jakac , Stefan Ivić

Distribution network reconfiguration (DNR) is a tool used by operators to balance line load flows and mitigate losses. As distributed generation and flexible load adoption increases, the impact of DNR on the security, efficiency, and…

Speech emotion recognition (SER) systems find applications in various fields such as healthcare, education, and security and defense. A major drawback of these systems is their lack of generalization across different conditions. This…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-15 Srinivas Parthasarathy , Carlos Busso

Throughput and per-packet delay can present strong trade-offs that are important in the cases of delay sensitive applications.We investigate such trade-offs using a random linear network coding scheme for one or more receivers in single hop…

Networking and Internet Architecture · Computer Science 2012-02-06 Weifei Zeng , Chris T. K. Ng , Muriel Medard

We describe a light-weight yet performant system for hyper-parameter optimization that approximately minimizes an overall scalar cost function that is obtained by combining multiple performance objectives using a target-priority-limit…

This report presents a more detailed description of the algorithm and simulations published in papers [1, 2]. It includes a step by step description of the algorithm and included the corresponding flow chart. In addition, detailed…

Networking and Internet Architecture · Computer Science 2016-12-26 Ahmed Abdelhadi , Haya Shajaiah

As an edge intelligence algorithm for multi-device collaborative training, federated learning (FL) can reduce the communication burden but increase the computing load of wireless devices. In contrast, split learning (SL) can reduce the…

Machine Learning · Computer Science 2022-09-07 Benshun Yin , Zhiyong Chen , Meixia Tao

The use of modern software-defined radio (SDR) devices enables the implementation of efficient communication systems in numerous scenarios. Such technology comes especially handy in the context of search and rescue (SAR) systems, enabling…

Signal Processing · Electrical Eng. & Systems 2023-12-11 Daniel Gil Gaviria , Marcus Müller , Felix Artmann , Laurent Schmalen

Future wireless communication systems are envisioned to share radio frequency (RF) spectrum, with other services such as radars, in order to meet the growing spectrum demands. In this paper, we consider co-channel spectrum sharing between…

Information Theory · Computer Science 2016-11-18 Awais Khawar , Ahmed Abdelhadi , T. Charles Clancy

In this work, we study the performance of multiple-hop mixed frequency (RF)/free-space optical (FSO) communication-based decode-and-forward protocol for multicast networks. So far, serving a large number of users is considered a promising…

Signal Processing · Electrical Eng. & Systems 2022-03-23 Olfa Ben Yahia , Eylem Erdogan , Gunes Karabulut Kurt

Efficient handover algorithms are essential for highly performing mobile wireless communications. These algorithms depend on numerous parameters, whose settings must be appropriately optimized to offer a seamless connectivity. Nevertheless,…

Networking and Internet Architecture · Computer Science 2012-11-15 Carlo Fischione , George Athanasiou , Fortunato Santucci

Robotic Mobile Fulfillment Systems (RMFS) rely on mobile robots for automated inventory transportation, coordinating order allocation and robot scheduling to enhance warehousing efficiency. However, optimizing RMFS is challenging due to…

Artificial Intelligence · Computer Science 2026-05-06 Yibang Tang , Yifan Yang , Jingyuan Wang , Junhua Chen , Zhen Zhao

This paper develops a sum-power minimized resource allocation (RA) algorithm subject to a sum-rate constraint for cooperative orthogonal frequency division modulation (OFDM) transmission with subcarrier-pair based opportunistic…

Information Theory · Computer Science 2016-11-15 Tao Wang , Yong Fang , Luc Vandendorpe

Deep unfolding networks have recently emerged as a promising approach for synthetic aperture radar (SAR) imaging. However, baseline unfolding networks, typically derived from iterative reconstruction algorithms such as the alternating…

Signal Processing · Electrical Eng. & Systems 2025-06-27 Shiping Fu , Yufan Chen , Zhe Zhang , Xiaolan Qiu , Qixiang Ye

In this work we approach attractor neural networks from a machine learning perspective: we look for optimal network parameters by applying a gradient descent over a regularized loss function. Within this framework, the optimal…

Machine Learning · Computer Science 2024-02-21 Elena Agliari , Francesco Alemanno , Miriam Aquaro , Alberto Fachechi

Hybrid radio frequency (RF)/free space optical (FSO) systems are among the candidate enabling technologies for the next generation of wireless networks since they benefit from both the high data rates of the FSO subsystem and the high…

Information Theory · Computer Science 2016-08-10 Marzieh Najafi , Vahid Jamali , Robert Schober