Communication Network Saturation

JTIDS waveform suppports multiple simultaneous transmissions by independent terminals operating on parallel subnets within the same geographic area. The designed JTIDS architecture permits up to 128 of these nets to simultaneously operate in aginve area, each with its unigque frequency hopping pattern. As a practical mattter, however, there are several factors which may limit the number of such nets operating concurrently. The primary concern is that of self-interference among the various nts. This interference will aslo degrade the effective anti-jam performance of the JTIDS system. There is a lessss obvious limitation on the number of simultaneious coexisting nets which is rooted in the net management of large dynamic networks. Depending on the connectivitiy requirments of the semi-autonomous coexisting communities which need to exchagne information, available slot resources may not support both the internal and external communication needs. Furthermore, any tow terminals may communicate if and they share at least one common scryptoo-varioable. Therefore, the net managment issue of communication netowrk satruation also includes a crypto-management issue. The absolute number of crypto-variables held by any given terminal is an improtant constraint on the number of participating networks with that terminal. All this will be evaluated during the SBIR effort.