Cache Replacement Algorithm of Video Sharing System for Mobile Users

With the advent of powerful mobile devices, video sharing applications are necessary to supply the needs of mobile users. In this study, the authors design a video sharing system for mobile users, so that they can share their videos with others. To make this system scalable, they use cache servers to offload the original web server. However, the traditional cache replacement algorithms may not work well in this system because the size of each video item is different. Thus, they present an improved cache replacement algorithm to adapt to this video sharing system. Experiment results prove the algorithm effective.