Improved Hotplug Caching Scheme Using PDAs

Rajput, C and Rajan, BS (2024) Improved Hotplug Caching Scheme Using PDAs. In: International Symposium on Information Theory, ISIT 2024, 7 July 2024through 12 July 2024, Athens, pp. 1574-1579.

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Abstract

We consider a hotplug coded caching systems in which some users are offline at the time of delivery. A placement delivery array (PDA) is a well-known tool for constructing a coded caching scheme for dedicated caches. In this paper, we introduce the concept of PDAs for hotplug coded caching schemes and refer to it as hotplug placement delivery array (HpPDA). We give an algorithm to describe the placement and the delivery phase of a hotplug coded caching scheme using HpPDA. We show that an existing hotplug coded caching scheme given in Y. Ma and D. Tuninetti, 'On coded caching systems with offline users,' in 2022 IEEE International Symposium on Information Theory (ISIT), 2022, pp. 1133-1138 corresponds to a class of HpPDAs, and then propose a method to further improve the rate of that scheme. © 2024 IEEE.

Item Type:	Conference Paper
Publication:	IEEE International Symposium on Information Theory - Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Caching scheme; Caching system; Hotplug; Offline; Time of delivery, Clutter (information theory)
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	23 Sep 2024 08:34
Last Modified:	23 Sep 2024 08:34
URI:	http://eprints.iisc.ac.in/id/eprint/86298

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