Communication Middleware and Software for QoS Control in Distributed Real-Time EnvironmentsSpecifically, we consider the following innovative research components

  • Authors:
  • Chao-Ju Hou;Ching-Chih Han;Yao-Min Chen

  • Affiliations:
  • -;-;-

  • Venue:
  • COMPSAC '97 Proceedings of the 21st International Computer Software and Applications Conference
  • Year:
  • 1997

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Abstract

There has been an increasing need of highly predictable, timely, and dependable communication services with QoS guarantees on an end-to-end basis either for embedded real-time applications or for multimedia-integrated distributed control. Performance objectives used in conventional networks --- such as maximizing the throughput, minimizing the response time, or providing fairness to users --- are not of the most important concern for both types of applications. Instead, resources, i.e., CPUs and I/O on end systems and bandwidth, buffer space and network adapters in the network should be appropriately reserved and managed to support multi-dimensional quality of service (QoS), i.e., high assurance, bounded delay, bounded delay jitter, distinction among messages of different levels of criticality, fault tolerance, and service availability, on an end-to-end basis, as well as application-specific tradeoffs among them. This paper reports and demonstrates an environment -- an integrated set of network resource management techniques, middleware layers, and network software -- for supporting multi-dimensional QoS on an end-to-end basis and exporting a unified, well-defined APIs for distributed real-time environments.