An adaptive and selective cell drop policy with dynamic data partitioning for best effort video over ATM

We propose and evaluate a new MPEG based video delivery framework for use with ATM best effort services (e.g. available bit rate and unspecified bit rate). The presented framework relies on three components: a video oriented cell discarding scheme, which adaptively and selectively adjusts drop level to switch buffer occupancy and video cell payload types; a dynamic frame level priority data partition mechanism based on MPEG data structure and feedback from the network; and an enhanced ATM Adaptation Layer type 5 associated with a new slice based MPEG2 encapsulation strategy. This best effort video delivery framework is evaluated using simulation and real MPEG video data.