Effect of dynamic topology on circuit and packet-switched satellite networks

Abstract

Since next-generation satellites are being designed to be network-centric, with routers and switches on board, the choice being circuit and packet switching (or combination of both) has become a crucial technology decision that many designers of satellite networks must grapple with. Of particular importance is how each type of switching responds to dynamic changes in network topology. The following simulation study characterizes and quantifies how circuit and packet-switched satellite networks respond to both planned and unplanned changes in network topology. Results show that circuit-switched satellite networks, which must teardown and reestablish connections, are less robust in handling dynamic changes in network topology