4.6 Article

An Information-Theoretic View of Mixed-Delay Traffic in 5G and 6G

期刊

ENTROPY
卷 24, 期 5, 页码 -

出版社

MDPI
DOI: 10.3390/e24050637

关键词

mixed-delay constraints; URLLC; eMBB

资金

  1. INRIA Nokia Bell Labs ADR Network Information Theory
  2. French National Agency for Research (ANR) [ANR-16-CE25-0001-ARBURST]
  3. European Union [715111]
  4. US-Israel Binational Science Foundation (BSF) [BSF-2018710]
  5. U.S. National Science Foundation (NSF) within the Israel-US Binational program [CCF-1908308]

向作者/读者索取更多资源

This survey reviews coding schemes that simultaneously accommodate URLLC and eMBB transmissions from an information theoretic perspective and shows their superiority over traditional scheduling approaches. Various communication scenarios are considered, and the focus is on the achievable rate pairs for URLLC and eMBB messages, as well as the achievable error probability pairs in finite-blocklength scenarios.
Fifth generation mobile communication systems (5G) have to accommodate both Ultra-Reliable Low-Latency Communication (URLLC) and enhanced Mobile Broadband (eMBB) services. While eMBB applications support high data rates, URLLC services aim at guaranteeing low-latencies and high-reliabilities. eMBB and URLLC services are scheduled on the same frequency band, where the different latency requirements of the communications render their coexistence challenging. In this survey, we review, from an information theoretic perspective, coding schemes that simultaneously accommodate URLLC and eMBB transmissions and show that they outperform traditional scheduling approaches. Various communication scenarios are considered, including point-to-point channels, broadcast channels, interference networks, cellular models, and cloud radio access networks (C-RANs). The main focus is on the set of rate pairs that can simultaneously be achieved for URLLC and eMBB messages, which captures well the tension between the two types of communications. We also discuss finite-blocklength results where the measure of interest is the set of error probability pairs that can simultaneously be achieved in the two communication regimes.

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