Real-time and embedded systems
ACM Computing Surveys (CSUR)
Location management methods of migratory data resources in ATM networks
SAC '97 Proceedings of the 1997 ACM symposium on Applied computing
Incorporation of multimedia capabilities in distributed real-time applications
CIKM '96 Proceedings of the workshop on Databases: active and real-time
Controlling the Process with Distributed Multimedia
IEEE MultiMedia
The Mercuri Multimedia Laboratory at Honeywell
IEEE MultiMedia
Design and Evaluation of a Generic Software Architecture for On-Demand Video Servers
IEEE Transactions on Knowledge and Data Engineering
BeeHive: Global Multimedia Database Support for Dependable, Real-Time Applications
ARTDB '97 Proceedings of the Second International Workshop on Active, Real-Time, and Temporal Database Systems
Guaranteeing hard real-time traffic constraints with ATM networks
Integrated Computer-Aided Engineering
A delay optimal algorithm to locate and migrate data resources in broadband networks
Computer Communications
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This paper describes the distributed system, network and software architecture, the application development environment, the performance, and the early lessons learned on the ATM LAN testbed Mercuri established at the Honeywell Technology Center, to develop distributed multimedia technologies for real-time control applications. We have developed a client-server-based software architecture on Sun Sparcstation-2s connected by a Fore Systems' ASX-100 ATM switch, with video processing handled by Parallax's X Video cards. The architecture enables network-transparent applications and provides simple primitives for multimedia capture, display, transmission, storage, and retrieval. A real-time multimedia-in-the-loop control application was developed as the vehicle for testing the capabilities and performance of the network. Our test measurements focus on the end-user-level performance metrics such as message throughput and round-trip delay as well as video-frame jitter under no-load and load conditions. Our results show that the maximum burst throughput that can be supported at the user level is 48 Mb/s using AAL 5, while round-trip delays for 4-kbyte messages are about 3 ms. Our experience reveals a number of performance bottlenecks and open issues in using commercial ATM switches for practical applications. Our conclusions are outlined