The timeliness of information is of capital importance for numerous Internet of Things (IoT) services. To improve the information freshness in large-scale distributed IoT systems, this paper focuses on the Peak Age of Information (PAoI) optimization of slotted Aloha networks. Specifically, by assuming the first-come-first-served (FCFS) service discipline and Bernoulli packet arrival model, the mean PAoI is characterized and then optimized by either individually tuning the channel access probability or jointly tuning the channel access probability and packet arrival rate of each sensor. The explicit expressions of optimal parameter settings and the corresponding minimum PAoI are obtained, based on which the age-throughput tradeoff is evaluated. The analysis is verified by simulations. It is found that in the massive access scenarios, the minimum PAoI linearly increases with the network scale in both individual optimization and joint optimization cases, while the latter attains a lower increasing rate, better age performance, and less throughput loss.


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    Titel :

    Peak Age of Information Optimization of Slotted Aloha


    Beteiligte:
    Wu, Dewei (Autor:in) / Zhan, Wen (Autor:in) / Sun, Xinghua (Autor:in) / Zhou, Bingpeng (Autor:in) / Liu, Jingjing (Autor:in)


    Erscheinungsdatum :

    2022-09-01


    Format / Umfang :

    434831 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Auto-controlled algorithm for slotted ALOHA

    Sarker, J.H. / Halme, S.J. | IET Digital Library Archive | 2003


    Irregular Repetition Slotted ALOHA with Priority (P-IRSA)

    Sun, Jingyun / Liu, Rongke / Wang, Yan et al. | IEEE | 2016


    Throughput performance of direct spread Slotted-Aloha packet networks

    Barnes, Vincent / Osborne, William | AIAA | 1996


    Throughput Performance of Direct Spread Slotted-Aloha Packet Networks

    Barnes, V. / Osborne, W. / AIAA | British Library Conference Proceedings | 1996


    A new capture model for mobile radio slotted ALOHA systems

    Zhou,H. / Deng,R.H. / Osaka Inst.of Technol.,JP et al. | Kraftfahrwesen | 1995