The Age of Information in Networks: Moments, Distributions

4 days ago - vector is then found for the age on a line network of preemptive .... Monitor. Fig. 2. Source updating through a network described by a s...

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Dec 25, 2017 - The problem of minimizing the age-of-information has been extensively studied in single-hop net- works. In this paper, we minimize the age of a single information flow in multihop networks. If the packet transmission times over the net

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Sep 9, 2018 - [9] I. Kadota, E. Uysal-Biyikoglu, R. Singh, and E. Modiano, “Minimizing age of information in broadcast wireless networks,” in Proc. of Allerton,.

Feb 6, 2017 - Abstract—The problem of reducing the age-of-information has been extensively studied in the single-hop networks. In this paper, we minimize the age-of-information in general multihop networks. If the packet transmission times over the

Mar 17, 2018 - (LIDS) at the Massachusetts Institute of Technology (MIT), Cambridge, MA. {talak, sertac, modiano} This work was supported by NSF Grants AST-1547331, CNS-1713725, and. CNS-1701964, and by Army Research Office (ARO) grant numbe

Sep 14, 2017 - and current state of the system, when the maximum replication degree is r. Hence, Π1 ⊂ Π2 ⊂ ... ⊂ Πm. We define several types of policies in Πr: A policy is said to be preemptive, if a server can preempt a packet being proces

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Apr 5, 2016 - Email: {elie.najm, rajai.nasser} Abstract—Status ... access to the status and can send status updates as packets to .... this paper studies two models for the service time: a gamma distributed service time with parameters (k,

May 2, 2016 - consider systems with packet management, i.e., the queue can ... information. Thus, the Retransmission policies refer to keep transmitting the most recent packet repeatedly until a new packet arrives. Compared to LCFS, retransmission po

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Jan 24, 2017 - Characterization of time-critical information can be done through the so called real-time status updates that are messages carrying the timestamp of their generation. Status updates can range from sensor observations to stock market da

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Jan 8, 2018 - addition, Theorem 2 takes one more step to consider multi- flow, multi-server scheduling. This paper also complements the studies in [5]–[8] on (near) age-optimal online scheduling with a single information flow. V. NUMERICAL RESULTS.