New optimal trade-off point for coded caching systems with limited cache size
New optimal trade-off point for coded caching systems with limited cache size
复制标题
具有有限缓存大小的编码缓存系统的新最佳权衡点
DOI:
10.48550/arxiv.2310.07686
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Daniela Tuninetti
中科院分区:
文献类型:
--
作者:
Yi;Daniela Tuninetti
This paper presents a new achievable scheme for coded caching systems with $\mathsf{N}$ files, $\mathsf{K}=\mathsf{N}$ users, and cache size $\mathsf{M}=1/(\mathsf{N}-1)$. The scheme employs linear coding during the cache placement phase, and a three-stage transmissions designed to eliminate interference in the delivery phase. The achievable load meets a known converse bound, which impose no constraint on the cache placement, and is thus optimal. This new result, together with known inner and outer bounds, shows optimality of linear coding placement for $\mathsf{M} \leq 1/(\mathsf{N}-1)$ when $\mathsf{K}=\mathsf{N}\geq 3$. Interestingly and surprisingly, the proposed scheme is relatively simple but requires operations on a finite field of size at least 3.
影响因子:
2.5
作者:
Wan, Kai;Tuninetti, Daniela;Piantanida, Pablo
通讯作者:
Piantanida, Pablo
DOI:
--
发表时间:
2023
期刊:
Allerton 2023
影响因子:
--
作者:
Yinbin Ma;Daniela Tuninetti
通讯作者:
Daniela Tuninetti