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Age of Information in an URLLC-enabled Decode-and-Forward Wireless Communication System

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

Abstract

Age of Information (AoI) measures the freshness of data in mission critical Internet-of-Things (IoT) applications i.e., industrial internet, intelligent transportation systems etc. In this paper, a new system model is proposed to estimate the average AoI (AAoI) in an ultra-reliable low latency communication (URLLC) enabled wireless communication system with decode- and-forward relay scheme over the quasi-static Rayleigh block fading channels. Short packet communication scheme is used to meet both reliability and latency requirements of the proposed wireless network. By resorting finite block length information theory, queuing theory and stochastic processes, a closed-form expression for AAoI is obtained. Finally, the impact of the system parameters, such as update generation rate, block length and block length allocation factor on the AAoI are investigated. All results are validated by the numerical results.
Original languageEnglish
Title of host publication2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)
PublisherIEEE Communications Society
Pages1-6
Number of pages6
ISBN (Print)978-1-7281-8965-9
DOIs
Publication statusPublished - 28 Apr 2021
Externally publishedYes
Event2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) - Helsinki, Finland
Duration: 25 Apr 202128 Apr 2021

Conference

Conference2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring)
Period25/04/2128/04/21

Keywords

  • Vehicular and wireless technologies
  • Wireless networks
  • Stochastic processes
  • Relay networks (telecommunication)
  • Ultra reliable low latency communication
  • Reliability theory
  • Information age

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