Distributed scheduling for status update with heterogeneous services under the IRSA protocol

Wei Cheng Huang, Yu Chih Huang, Kuan Yu Lin, Shin Lin Shieh*, Po Ning Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The peak age-of-information (AoI) performance in irregular repetition slotted ALOHA (IRSA) is revisited in this paper with a particular focus on heterogeneous networks, where types of users may have different numbers of users, active probabilities, and sensitivities to AoI. A distributed scheduling framework that is both conceptually and practically simple is proposed. A series of analyses and approximations are conducted, which lead to a closed-form approximation of the best scheduling policy within the proposed framework. Extensive simulations are provided to confirm that in spite of being extremely low complex, the proposed policy can significantly reduce the weighted average peak AoI, especially for heavily overloaded scenarios.

Original languageEnglish
Pages (from-to)14468-14481
Number of pages14
JournalIEEE Transactions on Vehicular Technology
Volume72
Issue number11
DOIs
StatePublished - 1 Nov 2023

Keywords

  • Age of information
  • Distributed scheduling policy
  • Irregular repetition slotted ALOHA
  • Random access

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