On the Age of Status Updates in Unreliable Multi-Source M/G/1 Queueing Systems
Kumar M.S. Dadlani A. Moradian M. Khonsari A. Tsiftsis T.A.
1 February 2023Institute of Electrical and Electronics Engineers Inc.
IEEE Communications Letters
2023#27Issue 2751 - 755 pp.
The timeliness of status message delivery in communications networks is subjective to time-varying wireless channel transmissions. In this letter, we investigate the age of information (AoI) of each source in a multi-source M/G/1 queueing update system with active server failures. In particular, we adopt the method of supplementary variables to derive a closed-form expression for the average AoI in terms of system parameters, where the server repair time follows a general distribution and the service time of packets generated by independent sources is a general random variable. Numerical results are provided to validate the effectiveness of the proposed packet serving policy under different parametric settings.
Age of information , multi-source M/G/1 queue , real-time systems , server failure , supplementary variable
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PSG College of Technology, Department of Applied Mathematics and Computational Sciences, Coimbatore, 641004, India
University of Alberta, Faculty of Arts-Interdisciplinary Studies, Edmonton, T6G 2E7, Canada
Nazarbayev University, Department of Electrical and Computer Engineering, Astana, 010000, Kazakhstan
Institute for Research in Fundamental Sciences, School of Computer Science, Tehran, 19538-33511, Iran
University of Tehran, Department of Electrical and Computer Engineering, Tehran, 1439957131, Iran
Institute for Research in Fundamental Sciences, Tehran, 19538-33511, Iran
Jinan University, Zhuhai Campus, School of Intelligent Systems Science and Engineering, Zhuhai, 519070, China
PSG College of Technology
University of Alberta
Nazarbayev University
Institute for Research in Fundamental Sciences
University of Tehran
Institute for Research in Fundamental Sciences
Jinan University
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