Results 11 to 20 of about 24,484 (202)

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

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, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

Research on the compatibility between V2X Internet of Vehicles system and FSS at 6 GHz frequency band

Dianzi Jishu Yingyong, 2019
At this stage, as China is in an important period of transformation and upgrading of manufacturing industry and innovation and development of emerging technology industries, the emerging intelligent industry V2X is increasingly receiving national ...
Zhang Shaowei
doaj   +1 more source

Analytical Models of the Performance of C-V2X Mode 4 Vehicular Communications [PDF]

, 2018
The C-V2X or LTE-V standard has been designed to support V2X (Vehicle to Everything) communications. The standard is an evolution of LTE, and it has been published by the 3GPP in Release 14.
Gonzalez-Martin, Manuel, Gozalvez, Javier, Molina-Masegosa, Rafael, Sepulcre, Miguel   +3 more
core   +3 more sources

A Tutorial on the LTE-V2X Direct Communication

IEEE Open Journal of Vehicular Technology, 2022
The concept of direct communications between vehicles and to/from vehicles and roadside infrastructure (vehicle to vehicle and vehicle to infrastructure – V2X) has been around for more than 20 years.
Abolfazl Hajisami, Jim Lansford, Aasif Dingankar, Jim Misener   +3 more
doaj   +1 more source

Sub-6GHz Assisted MAC for Millimeter Wave Vehicular Communications [PDF]

, 2019
Sub-6GHz vehicular communications (using DSRC, ITS-G5 or C-V2X) have been developed to support active safety applications. Future connected and automated driving applications can require larger bandwidth and higher data rates than currently supported by ...
Coll-Perales, Baldomero, Gozalvez, Javier, Gruteser, Marco   +2 more
core   +3 more sources

5G V2X System-Level Architecture of 5GCAR Project

Future Internet, 2019
One of the goals of the 5G Communication Automotive Research and innovation (5GCAR) project has been to evaluate and propose system architecture enhancements aiming at supporting the strict requirements of vehicle-to-everything (V2X) use cases.
Massimo Condoluci, Laurent Gallo, Laurent Mussot, Apostolos Kousaridas, Panagiotis Spapis, Maliheh Mahlouji, Toktam Mahmoodi   +6 more
doaj   +1 more source

Critical thinking and suggestions on C-V2X with the developments of intelligent connected vehicles

Dianxin kexue, 2022
C-V2X (cellular vehicle-to-everything) is the international standards dominated by China’s enterprises for V2X wireless communications.Based on a brief review of C-V2X, it was indicated that C-V2X could provide capabilities such as low-latency and high ...
Shanzhi CHEN
doaj   +2 more sources

A City-Scale ITS-G5 Network for Next-Generation Intelligent Transportation Systems: Design Insights and Challenges [PDF]

, 2018
As we move towards autonomous vehicles, a reliable Vehicle-to-Everything (V2X) communication framework becomes of paramount importance. In this paper we present the development and the performance evaluation of a real-world vehicular networking testbed ...
A Tassi, C Ameixieira, P Demestichas, P Fazio, Z Tong   +4 more
core   +3 more sources

5G Cross-Border Operation for Connected and Automated Mobility: Challenges and Solutions

Future Internet, 2019
The vision of cooperative, connected and automated mobility (CCAM) across Europe can only be realized when harmonized solutions that support cross-border traffic exist.
Apostolos Kousaridas, Andreas Schimpe, Sebastian Euler, Xavier Vilajosana, Mikael Fallgren, Giada Landi, Francesca Moscatelli, Sokratis Barmpounakis, Francisco Vázquez-Gallego, Roshan Sedar, Rodrigo Silva, Laurent Dizambourg, Stefan Wendt, Maciej Muehleisen, Kurt Eckert, Jérôme Härri, Jesus Alonso-Zarate   +16 more
doaj   +1 more source

Spatial Structure and Coherent Motion in Dense Planetary Rings Induced by Self-Gravitational Instability [PDF]

, 1999
We investigate the formation of spatial structure in dense, self-gravitating particle systems such as Saturn's B-ring through local $N$-body simulations to clarify the intrinsic physics based on individual particle motion.
A G W Cameron, A P Hatzes, A Toomre, B A Smith, D C Richardson, D N C Lin, D Sugimoto, E Griv, F G Bridges, G W Hill, H Salo, H Salo, H Salo, H Salo, J Binney, J Lukkari, J Makino, J Makino, J P Dilley, J Wisdom, K D Supulver, K Nakazawa, K Ohtsuki, K Ohtsuki, K Ohtsuki, L Dones, L W Esposito, L W Esposito, L W Esposito, P Goldreich, P Goldreich, P Goldreich, S Araki, S Araki, S Araki, S Ida, S Ida, S Ida, W H Julian, W H Press, W K Hartmann, W R Ward   +41 more
core   +3 more sources