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Journal Articles Entropy Year : 2022

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

Abstract

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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Dates and versions

hal-03943743 , version 1 (17-01-2023)

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Homa Nikbakht, Michèle Wigger, Malcolm Egan, Shlomo Shamai Shitz, Jean-Marie Gorce, et al.. An Information-Theoretic View of Mixed-Delay Traffic in 5G and 6G. Entropy, 2022, 24, ⟨10.3390/e24050637⟩. ⟨hal-03943743⟩
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