Totem: a fault-tolerant multicast group communication system
Communications of the ACM
Theory and Practice of Object Systems - Special issue high availability in CORBA
The implementation of a CORBA object group service
Theory and Practice of Object Systems - Special issue high availability in CORBA
Is it an Agent, or Just a Program?: A Taxonomy for Autonomous Agents
ECAI '96 Proceedings of the Workshop on Intelligent Agents III, Agent Theories, Architectures, and Languages
DOORS: Towards High-Performance Fault Tolerant CORBA
DOA '00 Proceedings of the International Symposium on Distributed Objects and Applications
Newtop: a fault-tolerant group communication protocol
ICDCS '95 Proceedings of the 15th International Conference on Distributed Computing Systems
Experiences, Strategies, and Challenges in Building Fault-Tolerant CORBA Systems
IEEE Transactions on Computers
Towards Real-Time Fault-Tolerant CORBA Middleware
Cluster Computing
MEAD: support for Real-Time Fault-Tolerant CORBA: Research Articles
Concurrency and Computation: Practice & Experience - Foundations of Middleware Technologies
Designing Reliable Architecture for Stateful Fault Tolerance
PDCAT '06 Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies
Towards middleware for fault-tolerance in distributed real-time and embedded systems
DAIS'08 Proceedings of the 8th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
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The ITS is a state-of-the-art system, which maximizes mobility, safety, and usefulness through combining existing transport systems with information, communication, computer, and control technologies. The core functions of the ITS are collection, management, and provision of real time transport information, and it can be deployed based on the Common Object Request Broker Architecture (CORBA) of the Object Management Group (OMG) efficiently because it consists of many interconnected heterogeneous systems. Fault Tolerant CORBA (FT-CORBA) supports real time requirement of transport information stably through redundancy by replication of server objects. However, object replication, management, and related protocols of FT-CORBA require extra system CPU and memory resources, and can degrade the system performance both locally and as a whole. This paper proposes an improved architecture to enhance performance of FT-CORBA based ITS by generating and managing object replicas autonomously and dynamically during system operation with an autonomous agent. The proposed architecture is expected to be applicable to other FT-CORBA based systems.