Distribution of age of information in status update systems with heterogeneous information sources: an absorbing markov chain-based approach

Akar, NailGamgam, Ege Orkun2024-03-122024-03-122023-05-311089-7798https://hdl.handle.net/11693/114575In 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.enCC BYhttps://creativecommons.org/licenses/by/4.0/Absorbing Markov chainsAge of informationStatus update systemsDistribution of age of information in status update systems with heterogeneous information sources: an absorbing markov chain-based approachArticle10.1109/LCOMM.2023.32816951558-2558