A Novel Scheme for Coded Caching with Coded Placement in Small Memory Regime
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866910478854258688 |
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| author | Ma, Yinbin Tuninetti, Daniela |
| author_facet | Ma, Yinbin Tuninetti, Daniela |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_17767 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Novel Scheme for Coded Caching with Coded Placement in Small Memory Regime Ma, Yinbin Tuninetti, Daniela Information Theory 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. |
| title | A Novel Scheme for Coded Caching with Coded Placement in Small Memory Regime |
| topic | Information Theory |
| url | https://arxiv.org/abs/2404.17767 |