المؤلفون: Jose F. Monserrat, David Garcia-Roger, Chan Zhou, Apostolos Kousaridas, Sandra Roger, David Martin-Sacristan, Panagiotis Spapis

المصدر: IEEE Access, Vol 7, Pp 20484-20498 (2019)

مصطلحات موضوعية: Scheme (programming language), General Computer Science, Computer science, Distributed computing, Interface (computing), Reliability (computer networking), 02 engineering and technology, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Use case, computer.programming_language, Multi-connectivity, business.industry, General Engineering, 020206 networking & telecommunications, 5G core, Transmission (telecommunications), Path (graph theory), V2X, sidelink, 020201 artificial intelligence & image processing, lcsh:Electrical engineering. Electronics. Nuclear engineering, Mobile telephony, business, lcsh:TK1-9971, computer, 5G

الوصف: Enhanced vehicle-to-everything (eV2X) communication is one of the most challenging use cases that the fifth generation (5G) of cellular mobile communications must address. In particular, eV2X includes some 5G vehicular applications targeting fully autonomous driving which require ultra-high reliability. The usual approach to providing vehicular communication based on single-connectivity transmission, for instance, through the direct link between vehicles (PC5 interface), often fails at guaranteeing the required reliability. To solve such a problem, in this paper, we consider a scheme where the radio path followed by eV2X messages can be proactively and dynamically configured to either transmit through a single interface (chosen between the PC5 and the Uu interface for infrastructure-based communication) or through both interfaces simultaneously, depending on the requirements and particular situation. After describing some path management general considerations, we propose a new network function and a procedure to enhance the current capabilities of the 3GPP 5G system. Next, we propose different architectures to support our proposal following the four 5G eV2X architectural options defined by the 3GPP. For each alternative, the necessary signaling for the dynamic configuration of the radio paths is detailed. Finally, an exemplary use case of our proposal is presented in detail to illustrate the feasibility of our proposed functional architectures, and, for that use case, system-level simulation results are provided to demonstrate the benefit achieved with dynamic path management.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65197db237765a7c439d467fd79f582f
https://doi.org/10.1109/access.2019.2897843

المؤلفون: David Garcia-Roger, Nicolo Incardona, Jose F. Monserrat, Narcis Cardona, Josue Flores de Valgas

المصدر: 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
PIMRC

مصطلحات موضوعية: Computer science, Orthogonal frequency-division multiplexing, 050801 communication & media studies, 02 engineering and technology, Synchronization, testbed, 0508 media and communications, Synchronization (computer science), 0202 electrical engineering, electronic engineering, information engineering, Waveform, Collision avoidance, OFDM, business.industry, UF-OFDM, vehicular, 05 social sciences, Testbed, 020206 networking & telecommunications, FBMC-OQAM, waveforms, Transmission (telecommunications), V2V, sidelink, Synchronism, business, synchronization, 5G, Computer hardware

الوصف: This paper details a hardware testbed conceived for studying the impact of the lack of synchronism between transmitters on several 5G waveform candidates, which is of special relevance for car-to-car communications. The experimental results show that a proper fitting of waveforms in a software-defined platform would permit increasing the range of communication between cars without peer-to-peer synchronization, paving the way for the real development of collision avoidance messages.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567e34225c998e66dafa5efc1819594c