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Computer Science > Information Theory

Title: A Novel Scheme for Coded Caching with Coded Placement in Small Memory Regime

Abstract: This paper presents a novel achievable scheme for coded caching systems with $N$ files and $K$ users, specifically when $N \leq K$. This new scheme employs linear coding both during the placement phase - where cache contents are linear combinations of files from the library - and the delivery phase. The multi-step delivery phase enables users to decode the cached coded content and eliminate interference effectively. In the small memory regime, the proposed scheme outperforms existing methods, particularly when $K$ and $N$ values are similar, it maintains manageable sub-packetization levels, and operates over a finite field of size $3$ regardless of the system parameters.
Subjects: Information Theory (cs.IT)
Cite as: arXiv:2404.17767 [cs.IT]
  (or arXiv:2404.17767v1 [cs.IT] for this version)

Submission history

From: Yinbin Ma [view email]
[v1] Sat, 27 Apr 2024 03:19:30 GMT (18kb)

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