QoS Enabled Dissemination of Managed Information Objects in a Publish-Subscribe-Query Information Broker

Net-centric information spaces have become a necessary concept to support information exchange for tactical warfighting missions using a publish-subscribe-query paradigm. To support dynamic, mission-critical and time-critical operations, information spaces require Quality of Service (QoS)-Enabled Dissemination (QED) of information. This paper describes the results of research the authors are conducting to provide QED information exchange in tactical environments. They have developed a prototype QoS-enabled publish-subscribe-query information broker that provides timely delivery of information needed by tactical warfighters in mobile scenarios with time-critical emergent targets. This broker enables tailoring and prioritizing of information based on mission needs and responds rapidly to priority shifts and unfolding situations.