Distribution of Age of Information in Status Update Systems With Heterogeneous Information Sources: An Absorbing Markov Chain-Based Approach

被引：9

作者：

Akar, Nail ^{[1
]}

Gamgam, Ege Orkun ^{[1
,2
]}

机构：

[1] Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkiye

[2] ASELSAN Inc, TR-06800 Ankara, Turkiye

来源：

IEEE COMMUNICATIONS LETTERS | 2023年 / 27卷 / 08期

关键词：

Status update systems; age of information; absorbing Markov chains;

D O I：

10.1109/LCOMM.2023.3281695

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, we obtain the exact distributions of the Age of Information (AoI) and Peak AoI (PAoI) in a non-preemptive multi-source status update system for (i) Generate-At-Will (GAW) servers with probabilistic transmissions (ii) Random Arrival with Single Buffer (RA-SB) servers employing probabilistic buffer management, using absorbing Continuous-Time Markov Chains (CTMC). For both servers, the information sources are allowed to have different relative urgencies, phase-type service time distributions, and transmission error probabilities, for the sake of generality. Numerical examples are presented to validate the proposed analytical model.

引用

页码：2024 / 2028

页数：5

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