Latency-Optimal mmWave Radio Access for V2X Supporting Next Generation Driving Use Cases
| Autor: | Abderrahim Benslimane, Shao-Yu Lien, Alexey Vinel, Yen-Chih Kuo, Der-Jiunn Deng, Hua-Lung Tsai |
|---|---|
| Přispěvatelé: | Laboratoire Informatique d'Avignon (LIA), Avignon Université (AU)-Centre d'Enseignement et de Recherche en Informatique - CERI |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Beamforming
mmWave General Computer Science Computer science [SCCO.COMP]Cognitive science/Computer science 02 engineering and technology Communications system 01 natural sciences ACM: G.: Mathematics of Computing Next-generation network 0202 electrical engineering electronic engineering information engineering Electronic engineering [INFO]Computer Science [cs] General Materials Science Use case Latency (engineering) beam sweeping 010401 analytical chemistry Transmitter General Engineering 020206 networking & telecommunications NR V2X next generation driving use cases 0104 chemical sciences low latency Extremely high frequency Cellular network lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 7, Pp 6782-6795 (2019) IEEE Access IEEE Access, IEEE, 2019, 7, pp.6782-6795. ⟨10.1109/ACCESS.2018.2888868⟩ |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/ACCESS.2018.2888868⟩ |
| Popis: | International audience; With the facilitation of the fifth generation new radio, vehicle-to-everything applications have entered a brand new era to sustain the next generation driving use cases of advanced driving, vehicle pla-tooning, extended sensors, and remote driving. To deploy these driving use cases, the service requirements, however, include low latency, high reliability, and high data rates, which thus render utilizing millimeter wave (mmWave) carriers (spectrum above 6 GHz) as a remedy to empower the next generation driving use cases. However, suffering from severe signal attenuation, the transmission range of mmWave carriers may be very limited, which is unfavorable in mobile network deployment to offer seamless services, and compel directional transmission/reception using beamforming mandatory. For this purpose, both a transmitter and a receiver should sweep their beams toward different directions over time, and a communication link can be established only if a transmitter and a receiver arrange their beam directions toward each other at the same time (known as beam alignment). Unfortunately, the latency of performing beam sweeping to achieve beam alignment turns out to be a dominating challenge to exploit mmWave, especially for the next generation driving use cases. In this paper, we consequently derive essential principles and designs for beam sweeping at the transmitter side and receiver side, which not only guarantee the occurrence of beam alignment but also optimize the latency to achieve beam alignment. Based on the availabilities of a common geographic reference and the knowledge of beam sweeping scheme at the transmitter side, we derive corresponding performance bounds in terms of latency to achieve beam alignment, and the device corresponding latency-optimal beam sweeping schemes. The provided engineering insights, therefore, pave inevitable foundations to practice the next generation driving use cases using mmWave carriers. INDEX TERMS NR V2X, next generation driving use cases, mmWave, low latency, beam sweeping. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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