Joint Optimization and Tradeoff Modeling for Peak AoI and Delay-Bound Violation Probabilities over URLLC-Enabled Wireless Networks Using FBC

Xi Zhang, Jingqing Wang, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To support the new and dominating traffic services - ultra-reliable and low latency communications (URLLC), the short-packet data communication techniques, such as finite blocklength coding (FBC), have been developed to guarantee the stringent delay and error-rate bounded quality-of-services (QoS) requirements for delay/age-sensitive wireless applications by using short-packet data communications. On the other hand, the age of information (AoI) has recently emerged as a new dimension of QoS performance metric in terms of the freshness of updated information for the delay/age-sensitive data transmissions. Since the status updates normally only consist of a small number of information bits and require ultra-low latency, integrating AoI with FBC creates another promising solution for supporting delay/age-sensitive URLLC services. However, how to characterize the relationships between AoI and delay over URLLC-enabled wireless networks has neither been well understood nor thoroughly studied in the finite blocklength regime. To overcome these challenges, we propose the joint optimization and tradeoff modeling for both peak AoI and delay-bound violation probabilities to support URLLC in the finite blocklength regime. First, we build up FBC based AoI-driven system models in the finite blocklength regime. Second, we apply the stochastic network calculus (SNC) to upper-bound both the peak AoI violation probability and delay-bound violation probability. Third, we jointly optimize the peak AoI violation probability and delay-bound violation probability and characterize their tradeoff in the finite blocklength regime. Finally, we conduct the extensive simulations to validate and evaluate our proposed AoI-driven schemes in the finite blocklength regime.

Original languageEnglish (US)
Title of host publicationICC 2021 - IEEE International Conference on Communications, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728171227
DOIs
StatePublished - Jun 2021
Event2021 IEEE International Conference on Communications, ICC 2021 - Virtual, Online, Canada
Duration: Jun 14 2021Jun 23 2021

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Conference

Conference2021 IEEE International Conference on Communications, ICC 2021
Country/TerritoryCanada
CityVirtual, Online
Period6/14/216/23/21

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Keywords

  • AoI
  • delay-bound violation probability
  • FBC
  • information theory
  • peak AoI violation probability
  • SNC
  • URLLC

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