Adaptive K-Repetition Transmission with Site Diversity Reception for Energy-Efficient Grant-Free URLLC in 5G NR

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dc.contributor.authorDataesatu, Arif
dc.contributor.authorSanada, Kosuke
dc.contributor.authorHatano, Hiroyuki
dc.contributor.authorMori, Kazuo
dc.contributor.authorBoonsrimuang, Pisit
dc.date.accessioned2026-08-06T10:44:52Z
dc.date.available2026-08-06T10:44:52Z
dc.date.issued2024-01-01
dc.description.abstractThe fifth-generation (5G) new radio (NR) standard employs ultra-reliable and low-latency communication (URLLC) to provide real-time wireless interactive capability for the internet of things (IoT) applications. To satisfy the stringent latency and reliability demands of URLLC services, grant-free (GF) transmissions with the K-repetition transmission (K-Rep) have been introduced. However, fading fluctuations can negatively impact signal quality at the base station (BS), leading to an increase in the number of repetitions and raising concerns about interference and energy consumption for IoT user equipment (UE). To overcome these challenges, this paper proposes novel adaptive K-Rep control schemes that employ site diversity reception to enhance signal quality and reduce energy consumption. The performance evaluation demonstrates that the proposed adaptive K-Rep control schemes significantly improve communication reliability and reduce transmission energy consumption compared with the conventional K-Rep scheme, and then satisfy the URLLC requirements while reducing energy consumption.
dc.identifier.citationIEICE Transactions on Communications, E107.B(1), 74-84, 2024
dc.identifier.doi10.1587/transcom.2023WWP0006
dc.identifier.issn09168516
dc.identifier.other2-s2.0-85187753195
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/15322
dc.sourceIEICE Transactions on Communications
dc.subject5G NR
dc.subjectadaptive control
dc.subjectgrant-free
dc.subjectIoT
dc.subjectK-repetition
dc.subjectsite diversity reception
dc.subjecttransmission energy consumption
dc.subjectURLLC
dc.titleAdaptive K-Repetition Transmission with Site Diversity Reception for Energy-Efficient Grant-Free URLLC in 5G NR
dc.typeArticle

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