Results 51 to 60 of about 18,404 (202)

Backhaul For Low-Altitude UAVs in Urban Environments

, 2017
Unmanned Aerial Vehicles (UAVs) acting as access points in cellular networks require wireless backhauls to the core network. In this paper we employ stochastic geometry to carry out an analysis of the UAV backhaul performance that can be achieved with a ...
DaSilva, Luiz A., Galkin, Boris, Kibiłda, Jacek   +2 more
core   +1 more source

BD‐SBA for wireless backhauling application

Electronics Letters, 2018
A beam‐deflection short backfire antenna (BD‐SBA) is proposed. The BD‐SBA consists of an SBA and a deflection plate. The deflection plate is designed to change the phase of the reflected waves, hence deflecting the beam of the BD‐SBA. The beam deflection can realise different beam pointing within about 20°.
Gaonan Zhou, Baohua Sun, Qiuyan Liang, Jianfeng Li   +3 more
openaire   +1 more source

Using Wireless Network Coding to Replace a Wired With Wireless Backhaul [PDF]

IEEE Wireless Communications Letters, 2015
Cellular networks are evolving towards dense deployment of small cells. This in turn demands flexible and efficient backhauling solutions. A viable solution that reuses the same spectrum is wireless backhaul where the Small Base Station (SBS) acts as a relay. In this paper we consider a reference system that uses wired backhaul and each Mobile Station (
Thomsen, Henning, De Carvalho, Elisabeth, Popovski, Petar   +2 more
openaire   +3 more sources

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Optimizing C-RAN Backhaul Topologies: A Resilience-Oriented Approach Using Graph Invariants

Applied Sciences, 2019
At the verge of the launch of the first commercial fifth generation (5G) system, trends in wireless and optical networks are proceeding toward increasingly dense deployments, supporting resilient interconnection for applications that carry higher and ...
Valerio Frascolla, Cristina K. Dominicini, Marcia H. M. Paiva, Gilles Caporossi, Marcelo Antonio Marotta, Moises R. N. Ribeiro, Marcelo E. V. Segatto, Magnos Martinello, Maxwell E. Monteiro, Cristiano Bonato Both   +9 more
doaj   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada, Victor Monzon Baeza, Carlos Horcajo Fernández de Gamboa, Rocío Serrano Camacho, Carlos Monzo   +4 more
wiley   +1 more source

End-to-End Modelling and Simulation of NLOS Sub-6 GHz Backhaul via Diffraction for Internet Connectivity of Rural Areas

IEEE Open Journal of the Communications Society, 2023
Many rural and remote areas around the world still lack access to the Internet due to the high deployment and maintenance costs, the lack of infrastructure, and the low income compared to urban regions.
Muneer M. Al-Zubi, Mohamed-Slim Alouini
doaj   +1 more source

Cost-Efficient Wireless Mobile Backhaul Topologies: An Analytical Study [PDF]

2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010
Wireless communication technologies such as microwave radios are used to provide high-speed mobile backhaul connectivity for radio access networks in cases in which wirebased alternatives, e.g. cable or fiber, are not readily available and cannot be deployed in an economic or timely manner. Current mobile backhauls are predominantly deployed in tree or
Kuo F.-C., Zdarsky F.A., Lessmann J., Schmid S.   +3 more
openaire   +2 more sources

Individual Variation in Overwintering Strategies of the Great Evening Bat (Ia io) in Subtropical China 中国亚热带地区大足蝠 (Ia io) 越冬策略的个体差异

Wildlife Letters, EarlyView.
Tracking with GPS and accelerometers shows that great evening bats in subtropical China use two overwintering strategies: some remain in continuous hibernation, while others switch between torpor and activity as temperatures change. This behavioral flexibility, shaped by climate, underscores the importance of protecting diverse roosting habitats for ...
Zhiqiang Wang, Lixin Gong, Man Si, Zhenglanyi Huang, Yushi Pan, Hui Wu, Jiang Feng, Tinglei Jiang   +7 more
wiley   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

Advanced Functional Materials, Volume 36, Issue 25, 26 March 2026.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai, Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Giuseppe Castaldi, Tie Jun Cui, Vincenzo Galdi   +6 more
wiley   +1 more source