Analyses for Age of Information Supporting URLLC over Multimedia Wireless Networks

Xi Zhang, Qixuan Zhu, H. Vincent Poor

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

Abstract

Ultra-reliable and low-latency communication (URLLC) networks aim at providing a wide range of delay-sensitive multimedia services and applications by satisfying users' stringent requirements on the delay-bounded quality of service (QoS). The age of information (AoI) theory characterizes the freshness of information, which is the time-difference between the current time and the time-stamp of the latest observation, and thus, has been proposed to analyze the information latency in URLLC. This paper proposes to apply the AoI theory to study the information latency and to improve the delay-bounded QoS performance in URLLC networks, by analyzing the AoI over a stationary and ergodic first-come-first-serve M/M/1 channel using a stochastic hybrid system (SHS) model. By applying the SHS model, the transitions of AoI between states are triggered by stochastic events, and the probability that a transition occurs depends on both the continuous and discrete components of the current SHS state. We also derive the joint probability density function and expectation of AoI through the investigation of moment dynamics by using the SHS model. Finally, we evaluate and validate our derived results of distribution and expectation of AoI in URLLC networks through numerical analyses.

Original languageEnglish (US)
Title of host publication2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728154787
DOIs
StatePublished - May 2020
Event21st IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020 - Atlanta, United States
Duration: May 26 2020May 29 2020

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2020-May

Conference

Conference21st IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020
CountryUnited States
CityAtlanta
Period5/26/205/29/20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

Keywords

  • Age of information (AoI)
  • fifth generation (5G) networks
  • quality-of-service (QoS)
  • stochastic hybrid systems (SHS)
  • ultra-reliable and low-latency communications (URLLC)

Fingerprint Dive into the research topics of 'Analyses for Age of Information Supporting URLLC over Multimedia Wireless Networks'. Together they form a unique fingerprint.

  • Cite this

    Zhang, X., Zhu, Q., & Poor, H. V. (2020). Analyses for Age of Information Supporting URLLC over Multimedia Wireless Networks. In 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2020 [9154220] (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC; Vol. 2020-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPAWC48557.2020.9154220