Results 1 to 10 of about 32,643,267 (211)
3-D Placement of an Unmanned Aerial Vehicle Base Station (UAV-BS) for Energy-Efficient Maximal Coverage [PDF]
IEEE Wireless Communications Letters, 2017 Unmanned aerial vehicle mounted base stations (UAV-BSs) can provide wireless services in a variety of scenarios. In this letter, we propose an optimal placement algorithm for UAV-BSs that maximizes the number of covered users using the minimum transmit ...
Mohamed Alzenad +2 more
exaly +2 more sources
IEEE Internet of Things Journal, 2019 As a promising research area in Internet of Things (IoT), Internet of Vehicles (IoV) has attracted much attention in wireless communication and network. In general, vehicle localization can be achieved by the global positioning systems (GPSs).
Huafei Wang +2 more
exaly +2 more sources
Assessing Turbulence Models on the Simulation of Launch Vehicle Base Heating
International Journal of Aerospace Engineering, 2019 Launch vehicles suffer from severe base heating during ascents. To predict launch vehicle base heat flux, the computational fluid dynamics (CFD) tools are widely used.
Pengyu Pu, Yi Jiang
doaj +2 more sources
International Journal of Distributed Sensor Networks, 2020 The unmanned aerial vehicle features with high flexibility and easy deployment. It could be used as an air base station and provide fast communication services for the ground users.
Taifei Zhao, Hua Wang, Qianwen Ma
doaj +2 more sources
Fuzzy-Based Distributed Protocol for Vehicle-to-Vehicle Communication [PDF]
IEEE Transactions on Fuzzy Systems, 2021 This paper modeled the multihop data-routing in Vehicular Ad-hoc Networks(VANET) as Multiple Criteria Decision Making (MCDM) in four steps. First, the criteria which have an impact on the performance of the network layer are captured and transformed into fuzzy sets.
Ammar Hawbani +5 more
openaire +1 more source
Journal of Marine Science and Engineering, 2023 This article explores trajectory-following control for an unmanned aerial–aquatic vehicle (UAAV) navigating complex ocean disturbances and the interplay of air–seawater coupling factors.
Jian Cao +4 more
doaj +1 more source
3-D Placement of an Unmanned Aerial Vehicle Base Station for Maximum Coverage of Users With Different QoS Requirements [PDF]
IEEE Wireless Communications Letters, 2017 The need for a rapid-to-deploy solution for providing wireless cellular services can be realized by unmanned aerial vehicle base stations (UAV-BSs). To the best of our knowledge, this letter is the first in literature that studies a novel 3-D UAV-BS ...
Mohamed Alzenad +2 more
semanticscholar +1 more source
Measurement-Based Modeling of Vehicle-to-Vehicle MIMO Channels [PDF]
2009 IEEE International Conference on Communications, 2009 Vehicle-to-vehicle (VTV) communications are of interest for applications within traffic safety and congestion avoidance, but the development of suitable communications systems requires accurate models for VTV propagation channels. This paper presents a new wideband MIMO (multiple-input-multiple-output) channel model for VTV channels based on extensive ...
Johan Karedal +7 more
openaire +2 more sources
Coverage and Rate Analysis for Unmanned Aerial Vehicle Base Stations with LoS/NLoS Propagation [PDF]
2018 IEEE Globecom Workshops (GC Wkshps), 2018 The use of unmanned aerial vehicle base stations (UAV-BSs) as airborne base stations has recently gained great attention. In this paper, we model a network of UAV-BSs as a Poisson point process (PPP) operating at a certain altitude above the ground users.
Mohamed Alzenad, H. Yanikomeroglu
semanticscholar +1 more source
Vision-based vehicle guidance [PDF]
Computer, 1997 This implementation of lane and obstacle detection for an autonomous, self-guided vehicle succeeds by tailoring vision and computational techniques to an affordable SIMD architecture. The authors use a geometrical transform called inverse perspective mapping (IPM). Using a priori knowledge of both the scene and the acquisition device, the IPM technique
Massimo Bertozzi, Alberto Broggi
openaire +2 more sources