On the Age of Status Updates in Unreliable Multi-Source M/G/1 Queueing Systems

被引：5
|
作者：
Kumar, Muthukrishnan Senthil [1 ]
Dadlani, Aresh [2 ,3 ]
Moradian, Masoumeh [4 ]
Khonsari, Ahmad [5 ,6 ]
Tsiftsis, Theodoros A. A. [7 ]
机构：
[1] PSG Coll Technol, Dept Appl Math & Computat Sci, Coimbatore 641004, India
[2] Univ Alberta, Fac Arts Interdisciplinary Studies, Edmonton, AB T6G 2E7, Canada
[3] Nazarbayev Univ, Dept Elect & Comp Engn, Astana 010000, Kazakhstan
[4] Inst Res Fundamental Sci, Sch Comp Sci, Tehran 1953833511, Iran
[5] Univ Tehran, Dept Elect & Comp Engn, Tehran 1439957131, Iran
[6] Inst Res Fundamental Sci, Tehran 1953833511, Iran
[7] Jinan Univ, Sch Intelligent Syst Sci & Engn, Zhuhai Campus, Zhuhai 519070, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Age of information; multi-source M/G/1 queue; server failure; supplementary variable; real-time systems; INFORMATION;
D O I：
10.1109/LCOMM.2022.3219729
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
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.
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页码：751 / 755
页数：5
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