Response of circuit and packet-switching satellite networks to a sudden-attack scenario

Abstract

Since next-generation satellites are being designed to be network-centric, with routers and switches on board, the choice between circuit and packet switching (or a combination of both) has become a crucial technology decision that many designers of military satellite networks must grapple with. Of particular importance, is how each type of switching responds to a wartime or sudden attack scenario. When a sudden attack occurs, there is typically a surge in high-priority traffic that may be due to sensors, voice communications, or other applications. The following simulation study characterizes how packet- and circuit-switching systems respond to this sudden change in traffic prioritization. Results show that circuit-switched satellite networks must be carefully preconfigured prior to the attack and are less robust in handling surges in high-priority, wartime traffic