Toward ultrareliable low-latency communications: Typical scenarios, possible solutions, and open issues

Daquan Feng, Changyang She, Kai Ying, Lifeng Lai, Zhanwei Hou, Tony Q.S. Quek, Yonghui Li, Branka Vucetic

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

Ultrareliable low-latency communications (URLLC) is one of three emerging application scenarios in 5G new radio (NR) for which physical layer design aspects have been specified. With 5G NR, we can guarantee reliability and latency in radio access networks. However, for communication scenarios where the transmission involves both radio access and wide-area core networks, the delay in radio access networks contributes to only a portion of the end-toend (E2E) delay. In this article, we outline the delay components and packet loss probabilities in typical URLLC scenarios and formulate the constraints on E2E delay and overall packet loss probability. Then, we summarize possible solutions in the physical, link, and network layers as well as the cross-layer design. Finally, we discuss open issues in prediction and communication codesign for URLLC in wide-area, largescale networks.

原文English
文章編號8683972
頁(從 - 到)94-102
頁數9
期刊IEEE Vehicular Technology Magazine
14
發行號2
DOIs
出版狀態Published - 2019 六月

All Science Journal Classification (ASJC) codes

  • 汽車工程

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