Domical Cooperative Caching: A Novel Caching Technique for Streaming Media in Wireless Home Networks

摘要

Wireless home networks have become pervasive and widely deployed due to their low cost, ease of installation, and plug-and-play capabilities with consumer electronic devices. Caching of continuous media (audio and video clips) across devices has a significant impact on the average startup latency, defined as the average delay incurred from when a user references a clip to the onset of its display. In this paper, we focus on a home network consisting of a handful of devices and present a novel cooperative caching technique named Domical. Domical controls the placement of clips across devices based on their popularity, minimizing the likelihood of bottleneck links forming in a mesh network. We compare Domical with its predecessor, named Cont-Coop, showing that it enhances average startup latency with those networks that provide a high degree of connectivity among devices.