Hierarchical Caching System with Hotplug Model Using HpPDA

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A4 Artikkeli konferenssijulkaisussa

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en

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6

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2024 IEEE Information Theory Workshop, ITW 2024, pp. 484-489, Proceedings : information theory workshop

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Caching is a method to ease the strain on the network during peak hours. Many caching approaches consider a single-layer system in which the server is connected to the users via an error-free shared link. However, in these systems, all the users involved in the placement phase must be present during the delivery phase. To address this, a hotplug model was presented, in which only some users may actually reveal their demand and be present during the delivery phase. On the other hand, a single-layered caching system was extended to the two-layered coded caching system. In this work, we consider a two-layered hierarchical system in which a server with N files is connected to K1 mirrors and each mirror is connected to K2 users. Out of all K1K2 users, only K′ users are online during the delivery phase. All the mirrors and users are equipped with caches. We refer to this system as a hotplug hierarchical caching system. Here, we consider this system with the case when the cache memory of each mirror is zero, and propose a scheme using the concept of hotplug placement delivery arrays (HpPDAs).

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Publisher Copyright: © 2024 IEEE.

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Maurya, A K, Rajput, C & Sundar Rajan, B 2024, Hierarchical Caching System with Hotplug Model Using HpPDA. in 2024 IEEE Information Theory Workshop, ITW 2024. Proceedings : information theory workshop, IEEE, pp. 484-489, IEEE Information Theory Workshop, Shenzhen, China, 24/11/2024. https://doi.org/10.1109/ITW61385.2024.10806930