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Browse Prior Art Database

TRAFFIC CONGESTION CONTROL FOR THE IRIDIUMâ„¢ SYSTEM

IP.com Disclosure Number: IPCOM000006369D
Original Publication Date: 1992-May-01
Included in the Prior Art Database: 2001-Dec-28

Publishing Venue

Motorola

Related People

Authors:
Thomas J. Mihm Steven H. Moritz Theresa Chen Yen Wang

Abstract

The IRIDIUM' system may be viewed as a space- based packet-switched communications network shown in Figures 1-4, augmented by ground nodes providing direct user interface either to an individual user or to a public switched telephone network. As such it provides delay and efficiency advantages characteristic of networks offering dynamic resource sharing. However, demands in excess of system capacity can induce congestion effects, rapidly eliminating the benefits of these inherent advan- tages. This results in reduced throughput, unfairness, and possible network deadlock Tiatlic control procedures most therefore be incorporated which monitor/limit system dynamic response during periods of heavy system usage. malfunction. This leads in a natural way to the defini- tion of three additional levels of flow control, shown in Figures 2-4.