Admission control in video streaming proxy server

Resource availability-based admission control schemes usually offer a binary accept or reject decision on an individual video stream to a video streaming proxy server. An acceptance is granted whenever the server can guarantee the availability of resource required to support the stream. Otherwise, it will reject the stream. This is the greedy approach. However, our study has discovered that an acceptance of some streams may jeopardize the capacity of a video streaming proxy server. In other words, a server will have its capacity greatly reduced after accepting the requests of some streams "black sheep". If we are able to screen out such streams in advance, we can maintain server capacity by handling them more carefully. In this paper, we have developed several schemes to facilitate such diversion and have determined their strength and weakness in different scenarios under a multiple server platform. To avoid the laborious screening process, we have employed a heuristic function as an indicator to measure the loading status of the server.