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Multi-access coded caching schemes from cross resolvable designs

Katyal, D and Muralidhar, PN and Rajan, BS (2021) Multi-access coded caching schemes from cross resolvable designs. In: 2020 IEEE Information Theory Workshop, ITW 2020, 69 (5). pp. 2997-3010.

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Official URL: https://doi.org/10.1109/TCOMM.2021.3053048


We present a novel caching and coded delivery scheme for a multi-access network where multiple users can have access to the same cache (shared cache) and any cache can assist multiple users. This scheme is obtained from resolvable designs satisfying certain conditions which we call cross resolvable designs. To be able to compare different multi-access coded schemes with different number of users we normalize the rate of the schemes by the number of users served. Based on this per-user-rate we show that our scheme performs better than the recently proposed ("Multi-access coded caching: gains beyond cache-redundancy" by Serbetci, Parrinello and Elia) SPE scheme. It is shown that the resolvable designs from affine planes are cross resolvable designs and our scheme can be used based on these. The SPE scheme considers only the cases where the product of the number of users and the normalized cache size is 2, whereas the proposed scheme allows different choices depending on the choice of the cross resolvable design. © 2021 IEEE.

Item Type: Journal Article
Publication: 2020 IEEE Information Theory Workshop, ITW 2020
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Product design, Affine planes; Caching scheme; Coded schemes; Multiaccess; Multiaccess networks; Multiple user; Resolvable designs; Shared cache, Information theory
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 17 May 2023 10:06
Last Modified: 17 May 2023 10:06
URI: https://eprints.iisc.ac.in/id/eprint/81693

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