State-of-the-art in cache-aided combination networks
State-of-the-art in cache-aided combination networks
复制标题
最先进的缓存辅助组合网络
DOI：
10.1109/acssc.2017.8335420
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
P. Piantanida
中科院分区：
文献类型：
--
作者：
Kai Wan;Daniela Tuninetti;Mingyue Ji;P. Piantanida
缓存是一种有效的方法，通过在非高峰时段将一些内容存储在用户的本地存储器中来平滑网络流量，这可以用于减少高峰时段所需的传输次数。本文综述了缓存辅助中继网络的最新研究进展，特别是具有特定对称网络拓扑结构的组合网络。有两种方法存在的中继网络与最终用户缓存，这取决于是否为交付阶段的组播消息的生成是独立的网络拓扑结构。我们审查国家的最先进的计划，根据这两种方法之一进行分类。我们还讨论了它们的最优性（精确或乘法因子内）。
Caching is an effective approach to smooth out network traffic by storing some content in users' local memories during off-peak hours, which can be used to reduce the required number of transmissions during peak-traffic hours. This paper reviews recent advances on cache-aided relay networks, in particular for combination networks, which has a specific symmetric network topology. Two approaches exist for relay networks with end-user caches, depending on whether the generation of the multicast messages for the delivery phase is independent of the network topology. We review state-of-the-art schemes by categorizing them according to one of these two approaches. We also discuss their optimality (exact or to within a multiplicative factor).