Mobile agents for information retrieval in hybrid simulation environment

  • Authors:

  • Tainchi Lu;Chinghao Hsu

  • Affiliations:

  • Deptartment of Computer Science and Information Engineering, National Chiayi University, Chiayi, Taiwan;Deptartment of Computer Science and Information Engineering, National Chiayi University, Chiayi, Taiwan

  • Venue:
  • Journal of Network and Computer Applications - Special issue: Network and information security: A computational intelligence approach
  • Year:
  • 2007

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Abstract

In this paper, we propose a hybrid simulation environment that incorporates with wired/wireless networks, IEEE standard 1516 high-level architecture (HLA), and IBM Aglets mobile agent system. Therefore, HLA simulations are not restricted to be participated solely by using desktop computers with cable connections. Users can use a wide variety of devices to join in HLA simulations and explicitly exclude from junk data in terms of a personalized data filtering policy. Based on data correlation between HLA objects and a client's data filtering policy, we employ the simulation environment manager in distributing a client to an appropriate federate server (FS). In particular, a mobile agent, namely data filtering agent, is devised to temporarily reside at the FS to perform mobile agent-based data distribution management for clients. As a result, the clients can receive the most interested information corresponding to their pre-defined data filtering policies. Once either the data transmission quality within the wireless network is degraded below a threshold or the clients abnormally modify the data filtering policies, their own mobile agents carry out migrations to provide the users with the ubiquitous and seamless services. Consequently, the users can use any mobile device as well as using a desktop computer in a stationary point to participate in the HLA simulations. The experimental results also show that the proposed mobile agent-based data distribution can raise adaptability and applicability to large-scale HLA simulations.