Token-tray/weighted queuing-time (TT/WQT): an adaptive batching policy for near video-on-demand system

摘要

In near video-on-demand (near-VoD), requests for a video title are grouped together (i. e. batched) and are served with a single multicast stream, thereby increasing the number of concurrent users which can be supported y the system. Since users may not be able to tolerate the delay incurred by batching and hence cancel their requests, a batching policy should be designed so as to achieve low user loss and high revenue (given by the total pay-per-view (PPV) collected over a long period of time across all movies).