PROPOSAL OF MESSAGE DELEGATION SERVICE FOR ITS NETWORK USING AGENT TECHNIQUE

This paper deals with the agent architecture of ITS (Intelligent Transportation System) network for message delegation service. The ITS network consists of various types of wireless communication media with varied coverage of service areas and QOS (Quality of Services), such as IMT-2000 cellular phone system and advanced dedicated short range communication (DSRC) systems. To manage the communication loss in the ITS network, reliable message delegation service is required. FIPA defines the reference model of agent platforms, which has an ability of delegating messages to another agent if the communication to the recipient agent is disrupted. However, it does not have any mechanisms for delivering the delegated message to the original recipient. In this paper, the requirements of reliable message service for agent communication on ITS network are clarified and a reference model of agent platforms for ITS communication proposed. This model contains dedicated agents for message delegation service, directory service and location service for mobile entities (e.g. cars) in ITS network, in addition to the FIPA standard agents. This paper also discusses on the implementation issues on the message delegation service. For the covering abstract see ITRD E114174.