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With the rapid increase in mobile subscribers, there is a drive towards achieving higher data rates, prompting the use of higher frequencies in future wireless communication technologies. Wave propagation channel modeling for these…

Signal Processing · Electrical Eng. & Systems 2024-06-13 Xueyun Long , Amina Fellan , Mario Pauli , Hans D. Schotten , Thomas Zwick

Pushing data traffic from cellular to WiFi is an example of inter radio access technology (RAT) offloading. While this clearly alleviates congestion on the over-loaded cellular network, the ultimate potential of such offloading and its…

Information Theory · Computer Science 2016-11-18 Sarabjot Singh , Harpreet S. Dhillon , Jeffrey G. Andrews

Remote state estimation, where sensors send their measurements of distributed dynamic plants to a remote estimator over shared wireless resources, is essential for mission-critical applications of Industry 4.0. Existing algorithms on…

Systems and Control · Electrical Eng. & Systems 2022-05-26 Gaoyang Pang , Wanchun Liu , Yonghui Li , Branka Vucetic

Fruit distribution is pivotal in shaping the future of both agriculture and agricultural robotics, paving the way for a streamlined supply chain. This study introduces an innovative methodology that harnesses the synergy of RGB imagery,…

Robotics · Computer Science 2024-10-15 Kaiming Fu , Peng Wei , Juan Villacres , Zhaodan Kong , Stavros G. Vougioukas , Brian N. Bailey

This study introduces a novel computational framework for Robust Topology Optimization (RTO) considering imprecise random field parameters. Unlike the worst-case approach, the present method provides upper and lower bounds for the mean and…

Computational Engineering, Finance, and Science · Computer Science 2022-01-28 Kang Gao , Duy Minh Doc , Sheng Chu , Gang Wu , H. Alicia Kim , Carol A. Featherston

A large number of explicit estimators are proposed in this paper for loss rate estimation in a network of the tree topology. All of the estimators are proved to be unbiased and consistent instead of asymptotic unbiased as that obtained in…

Information Theory · Computer Science 2015-08-06 Weiping Zhu

In trying to emulate the spatial position of wireless nodes for purpose of analysis, we rely on stochastic simulation. And, it is customary, for mobile systems, to consider a base-station radiation coverage by an ideal cell shape. For…

Information Theory · Computer Science 2013-06-06 Mouhamed Abdulla , Yousef R. Shayan

New spectrum allocations in the 4--8 GHz FR1(C) and 7--24 GHz FR3 mid-band frequency spectrum are being considered for 5G/6G cellular deployments. This paper presents results from the world's first comprehensive indoor hotspot (InH)…

Signal Processing · Electrical Eng. & Systems 2024-05-08 Dipankar Shakya , Mingjun Ying , Theodore S. Rappaport , Hitesh Poddar , Peijie Ma , Yanbo Wang , Idris Al-Wazani

Communications between unmanned aerial vehicles (UAVs) play an important role in deploying aerial networks. Although some studies reveal that drone-based air-to-air (A2A) channels are relatively clear and thus can be modeled as free-space…

Systems and Control · Electrical Eng. & Systems 2023-01-31 Zhuangzhuang Cui , Abdul Saboor , Achiel Colpaert , Sofie Pollin

Little research has been done to reliably model millimeter wave (mmWave) path loss in rural macrocell settings, yet, models have been hastily adopted without substantial empirical evidence. This paper studies past rural macrocell (RMa) path…

Information Theory · Computer Science 2017-03-31 George R. MacCartney , Theodore S. Rappaport

The knowledge of distribution grid models, including topologies and line impedances, is essential to grid monitoring, control and protection. However, this information is often unavailable, incomplete or outdated. The increasing deployment…

Signal Processing · Electrical Eng. & Systems 2021-03-02 Yifei Guo , Yuxuan Yuan , Zhaoyu Wang

In this paper, we show a stochastic approach to generate a 3D model of a foliage, which is then used for deterministic ray-tracing channel modeling. This approach is verified by a measurement campaign at 60 and 80 GHz with 2 GHz bandwidth.…

Light-fidelity (LiFi) is a fully-networked bidirectional optical wireless communication (OWC) that is considered a promising solution for high-speed indoor connectivity. Unlike in conventional radio frequency wireless systems, the OWC…

Signal Processing · Electrical Eng. & Systems 2020-01-28 Mohamed Amine Arfaoui , Mohammad Dehghani Soltani , Iman Tavakkolnia , Ali Ghrayeb , Chadi Assi , Majid Safari , Harald Haas

Low earth orbit satellite constellations with intersatellite links (ISLs) are currently being developed and deployed. The availability of ISLs provides the capability to route across the satellite constellation, rather than using the…

Systems and Control · Electrical Eng. & Systems 2025-04-04 Peter Ashwood-Smith , Bill McCormick

This paper presents a novel and efficient wireless channel estimation scheme based on a tapped delay line (TDL) model of wireless signal propagation, where a data-driven machine learning approach is used to estimate the path delays and…

Networking and Internet Architecture · Computer Science 2024-05-28 Zainab Zaidi , Tansu Alpcan , Christopher Leckie , Sarah Efrain

This paper presents adaptive link selection algorithms for distributed estimation and considers their application to wireless sensor networks and smart grids. In particular, exhaustive search--based least--mean--squares(LMS)/recursive least…

Systems and Control · Computer Science 2015-10-20 S. Xu , R. C. de Lamare , H. V. Poor

Optimal operation of distribution grid resources relies on accurate estimation of its state and topology. Practical estimation of such quantities is complicated by the limited presence of real-time meters. This paper discusses a theoretical…

Systems and Control · Computer Science 2020-01-06 Deepjyoti Deka , Michael Chertkov , Scott Backhaus

Four types of explicit estimators are proposed here to estimate the loss rates of the links in a network with the tree topology and all of them are derived by the maximum likelihood principle. One of the four is developed from an estimator…

Networking and Internet Architecture · Computer Science 2017-07-05 Weiping Zhu

Conventional relays face challenges for transmission lines connected to inverter-based resources (IBRs). In this article, a single-ended intelligent protection of the transmission line in the zone between the grid and the PV farm is…

Signal Processing · Electrical Eng. & Systems 2025-01-03 Pallav Kumar Bera , Samita Rani Pani , Can Isik , Ramesh C. Bansal

Future dense small-cell networks are one key 5G candidates to offer outdoor high access data rates, especially in millimeter wave (mmWave) frequency bands. At those frequencies, the free space propagation loss and shadowing (from buildings,…

Networking and Internet Architecture · Computer Science 2016-11-23 Yoann Corre , Romain Charbonnier , Mohammed Zahid Aslam , Yves Lostanlen