科研成果详情

Efficient and accurate connection admission control (CAC) is essential in hard real-time communication. In a hard real-time system, every admitted connection must meet its deadline, otherwise the consequences may be catastrophic. Accurate delay analysis and proper amount of resource allocation are pivotal to the overall performance of the system. Both are more difficult to deal with in heterogeneous networks than in homogeneous networks. We address the issues of connection admission control in heterogeneous network. In particular, we design and analyse CAC methods based on partitioning deadlines. We demonstrate that this kind of partition-based CAC methods are simple, efficient, and scalable. Simulation data showed that systems with this kind of CAC methods can perform effectively in a wide range of system and payload parameters.