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- W4367000467 abstract "We study content caching in a wireless network in which the users are connected through a base station that is equipped with a finite-capacity cache. We assume a fixed set of contents whose popularity varies with time. Users' requests for the content depend on their instantaneous popularity levels. Proactively caching contents at the base station incurs a cost but not having requested contents at the base station also incurs a cost. We propose to proactively cache contents at the base station so as to minimize content missing and caching costs. We formulate the problem as a discounted cost Markov decision problem that is a restless multi-armed bandit problem. We provide conditions under which the problem is indexable and also propose a novel approach to maneuver a few parameters to render the problem indexable. We demonstrate the efficacy of the Whittle index policy via numerical evaluation." @default.
- W4367000467 created "2023-04-27" @default.
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- W4367000467 date "2023-04-24" @default.
- W4367000467 modified "2023-09-27" @default.
- W4367000467 title "Caching Contents with Varying Popularity using Restless Bandits" @default.
- W4367000467 doi "https://doi.org/10.48550/arxiv.2304.12227" @default.
- W4367000467 hasPublicationYear "2023" @default.
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