A Consideration on Cached Video Content Management Methods for Hierarchical Coding Condition

Abstract

Due to the popularization of video content services over the network, it is expected to use a lot of contents more. Since the improvement of efficiency in video content delivery is needed, the video content delivery methods using caching had been studied. Moreover, it is one of significant issues to manage and provide video data of multiple qualities in order to realize that the users use the video contents in various information terminals. Then, we had studied the video caching and delivery methods with scalable data. In this study, a service model of content utilization is defined. Priority calculation rules are proposed in cached contents management using hierarchical data for multiple qualities. q is defined as high content access ratio. By the simulation experiments, in the case of q = 0.6, proposed method is maximum about 11.4[%] superior to previous method in terms of TR , and in the case of q = 0.8, it is maximum about 17.6[%] superior. Therefore, we can especially consider that propose method is more effective when q is higher than 0.5.