Uplink transmissions in URLLC systems with shared diversity resources

Radoslaw Kotaba*, Carles Navarro Manchon, Tommaso Balercia, Petar Popovski

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

28 Citations (Scopus)
242 Downloads (Pure)

Abstract

5G features flagship use cases with ultra reliable low latency communication (URLLC), supported through high diversity. When multiple URLLC connections are only intermittently active, dedicating many diversity resources to a single connection leads to inefficient operation. We address this problem through shared diversity resources and compare it to per-link dedicated diversity. Two receiver types are considered, minimum mean squared error (MMSE) and MMSE successive interference cancelation. Outage probability is evaluated by assuming channel estimation errors. The results show that it is possible to remain close to the reliability of reference system with a relatively low amount of pre-allocated resources.

Original languageEnglish
Article number8274949
JournalIEEE Wireless Communications Letters
Volume7
Issue number4
Pages (from-to)590-593
Number of pages4
ISSN2162-2337
DOIs
Publication statusPublished - 1 Aug 2018

Keywords

  • HARQ
  • resource allocation and interference management
  • resource sharing
  • transmit diversity
  • URLLC

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