Autonomous process or go navigation technology for congestion avoidance in distributed information service system

Abstract

Rapid changes in service, network and user demand have made conventional distributed information systems mostly unprepared in continuously and timely satisfying the users requests. A high-assurance information system architecture sustained by Push/Pull mobile agents, called Faded Information Field (FIF), has been proposed to achieve adaptability and real-time property under continuously changing conditions of the system. When the service offer changes, the information environment is restructured in order to match the current user demand in terms of volume and trend. However, once the structure is set, it is still required to permit to the user's Pull mobile agents to autonomously adapt to the rapidly changing demand conditions. The goal of autonomous navigation of the pull mobile agents is in that regard to assure adaptive migration and distribution of the pull-MAs' process to avoid the congestion of certain regions of the FIF when the user demand for information is changing. In this paper, the concept and realization of autonomous Process or Go Navigation technology is proposed under the goal to preserve the timeliness of the system under local congestion conditions in the FIF Effectiveness in fairly reducing the average users' response time under changing demand conditions has been confirmed by simulation.