Namboodiri, KKK and Rajan, BS (2021) Multi-Access Coded Caching with Secure Delivery. In: 2021 IEEE Information Theory Workshop, ITW 2021, 17-21 Oct 2021, Virtual, Online.
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Abstract
The multi-access variant of the coded caching problem in the presence of external wiretappers is investigated. A multiaccess coded caching scheme with K users, K caches and N files, where each user has access to L neighbouring caches in a cyclic wrap-around manner, is proposed, which is secure against the wiretappers. Each transmission in the conventional insecure scheme will be now encrypted by a random key. The proposed scheme uses a novel technique for the key placement in the caches. It is also shown that the proposed secure multi-access coded caching scheme is within a constant multiplicative factor from the information-theoretic optimal rate for L �qK2 and N�q 2K. © 2021 IEEE.
| Item Type: | Conference Paper |
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| Publication: | 2021 IEEE Information Theory Workshop, ITW 2021 - 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; Multiaccess; Multiplicative factors; Novel techniques; Optimal rate; Random keys, Information theory |
| Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
| Date Deposited: | 07 Feb 2022 12:15 |
| Last Modified: | 07 Feb 2022 12:15 |
| URI: | http://eprints.iisc.ac.in/id/eprint/71261 |
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