论文标题
关于在雾辅的网络中编码的多播fronthaul交付的可实现性
On the Achievability of Coded Multicasting Fronthaul Delivery in Fog-Aided Networks
论文作者
论文摘要
雾网络受益于边缘节点（ENS）的内容缓存以及与云的Fronthaul连接。在以前的工作中，在不同的假设下，专用和多播的fronthaul链接都被视为衡量性能的标准。尽管在不同的缓存方案中对专用链接进行了广泛的研究，但在2 By-2 Fog网络的假设下，已经开发了多播链接，其中云连接到两个ENS服务，并将两个用户连接起来。任意数量的ENS和用户仅提供可实现的性能的下限。相比之下，这封信建议使用M ENS和K用户的一般M-B BY-K雾网络的可实现的编码多播计划。使用与理论下限以及使用数值分析的比较评估了所提出的方案的最佳性。
Fog networks benefit from content caching at edge nodes (ENs) as well as fronthaul connectivity to the cloud. In previous works, both dedicated and multicast fronthaul links has been considered under different assumptions with Normalized Delivery Time (NDT) as a standard to measure the performance. While dedicated links has been studied extensively in different caching scenarios, multicast links has been developed under assumption of 2-by-2 fog network where cloud is connected to two ENs serving two users. The extension to arbitrary number of ENs and users only provides the lower bound on the achievable performance. In contrast, this letter proposes an achievable coded multicasting scheme for a general M-by-K fog network with M ENs and K users. The optimality of the proposed scheme is evaluated using both comparison with theoretical lower bound as well as using numerical analysis.
