Results 21 to 30 of about 7,018 (219)
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
Sensors, 2020 Vehicle platoons involve groups of vehicles travelling together at a constant inter-vehicle distance, with different common benefits such as increasing road efficiency and fuel saving.
Sandra Roger +3 more
doaj +1 more source
IEEE Access, 2020 Unmanned aerial vehicle (UAV) assisted cell-free communications hold promise for enhancing the coverage and capacity of heterogeneous cellular networks.
Ali Raza +5 more
doaj +1 more source
Control Efficient Power Allocation of Uplink NOMA in UAV-Aided Vehicular Platooning
IEEE Access, 2021 Power allocation in non-orthogonal multiple access (NOMA) systems is essential to avoid multi-user detection failure. However, controlling the uplink transmission power brings extra signaling overhead, especially in dynamic environments.
Yanglong Sun, Ke Zheng, Yuliang Tang
doaj +1 more source
A multi-agent semi-cooperative unmanned air traffic management model with separation assurance
EURO Journal on Transportation and Logistics, 2021 This paper presents an air traffic management framework to enable multiple fleets of unmanned aerial vehicles to traverse dense, omni-directional air traffic safely and efficiently. The main challenge addressed here is separation assurance in the absence
Yanchao Liu
doaj +1 more source
Ionic Liquid Electrolytes for Extreme Temperature Conditions: Challenges and Perspective
Angewandte Chemie, EarlyView.Ionic liquids (ILs) have gained great attention as safe electrolyte components in recent years. This review elucidates the temperature effects on IL‐based electrolytes from molecular configurations, physicochemical properties, and interfacial chemistry, raises the challenges and design strategies operating at low‐ and HT, providing valuable guidance ...
En Xie +11 more
wiley +2 more sources
Simplifying the in-vehicle connectivity for ITS applications
EAI Endorsed Transactions on Energy Web, 2015 In-vehicle connectivity has experienced a big expansion in recent years; car manufacturers are very active in this sense, and are proposing OBU oriented solutions. This effort is justified by the user demands for always-on connectivity.
Sergio Tornell +5 more
doaj +1 more source
On the Impact of Multiple Access Interference in LTE-V2X and NR-V2X Sidelink Communications
Sensors, 2023 Developing radio access technologies that enable reliable and low-latency vehicular communications have become of the utmost importance with the rise of interest in autonomous vehicles.
Abdul Rehman +4 more
doaj +1 more source
Recent advances in connected and automated vehicles
Journal of Traffic and Transportation Engineering (English ed. Online), 2019 Connected and automated vehicle (CAV) is a transformative technology that has great potential to change our daily life. Therefore, CAV related research has been advanced significantly in recent years.
David Elliott, Walter Keen, Lei Miao
doaj +1 more source
Route Optimization of Electric Vehicles Based on Dynamic Wireless Charging
IEEE Access, 2018 One of the barriers for the adoption of electric vehicles (EVs) is the anxiety around the limited driving range. Recent proposals have explored charging EVs on the move, using dynamic wireless charging which enables power exchange between the vehicle and
Dimitrios Kosmanos +6 more
doaj +1 more source