Real-time multimedia scheduling policies for end-to-end delay jitter and loss guarantees across ATM satellite systems

We propose a simple first-in first-out (FIFO)-based service protocol which is appropriate for a multimedia ATM satellite system, The main area of inte rest is to provide realtime traffic with upper bounds on the end-to-end del ay, jitter, and loss experienced at various service queues within a satelli te network, Various service protocols, each based on a common underlying st rategy, are developed in light of the requirements and limitations imposed at each of the satellite's subsystems. These subsystems include the uplink (UL) earth station (ES) service queue, on-board processing (OBP) queues, an d the downlink (DL) ES service queue feeding into a wireline ATM network or directly to an end-user application. Numerous network simulation results d emonstrate the tractability, efficiency, and versatility of the underlying service discipline. Key features of our strategy are its algorithmic and ar chitectural simplicity, its non-ad-hoc scheduling approach, and its unified treatment of all real-time streams at all service queues, In addition, the delay and jitter bounds are uncoupled. In this way, end-to-end jitter can be tightly controlled even if medium access requires long indeterminate wai ting durations.