[Paper] A Cache Decision Policy for QoE Enhancement of Video and Audio Transmission over ICN/CCN
Toshiro Nunome, Keisuke Kobayashi · ITE Transactions on Media Technology and Applications · 2023
This paper aims to QoE (Quality of Experience) enhancement of video and audio transmission over ICN (Information-Centric Networking)/ CCN (Content-Centric Networking).Each intermediate node can cache content in ICN/CCN.Then, cache decision policies, which decide whether the node cache chunks or not when receiving the chunks, have an important role.We therefore focus on a cache decision policy for QoE enhancement.We propose and evaluate a cache decision policy that combines the ideas of LCD (Leave Copy Down) and probabilistic caching, which does not require special resources or prior knowledge.We assess application-level QoS (Quality of Service) using a computer simulation with a tree network and QoE by means of a subjective experiment.We then show that the proposed policy can enhance QoE against conventional policies.