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- W4309968795 abstract "We design efficient online scheduling policies to maximize the freshness of information delivered to the users in a cellular network under both adversarial and stochastic channel and mobility assumptions. The information freshness achieved by a policy is investigated through the lens of a recently proposed metric - Age-of-Information (AoI). We show that a natural greedy scheduling policy is competitive against any optimal offline policy in minimizing the AoI in the adversarial setting. We also derive universal lower bounds to the competitive ratio achievable by any online policy in the adversarial framework. In the stochastic setting, we show that a simple index policy is near-optimal for minimizing the average AoI in two different mobility scenarios. Further, we prove that the greedy scheduling policy minimizes the peak AoI for static users in the stochastic setting. Simulation results show that the proposed policies perform well under realistic conditions." @default.
- W4309968795 created "2022-11-30" @default.
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- W4309968795 date "2020-11-10" @default.
- W4309968795 modified "2023-09-30" @default.
- W4309968795 title "Optimizing Age-of-Information in Adversarial and Stochastic Environments" @default.
- W4309968795 doi "https://doi.org/10.48550/arxiv.2011.05563" @default.
- W4309968795 hasPublicationYear "2020" @default.
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