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Two-way global broadcast system architecture

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3 Author(s)
Miller, M. ; ViaSat, Inc., Carlsbad, CA, USA ; Wilcoxson, D. ; Vandermeulen, R.

The global broadcast system (GBS) implemented by the U.S. Department of Defense utilizes commercially-based digital video broadcast (DVB) technology to enable high-rate (10's of Mb/s), one-way, data dissemination to a large number of users. Currently, however, user terminals are limited to receive-only operation. For many users, a receive-only configuration is not adequate and a low to medium-rate (10's to 100's of kb/s) return channel is required for true network-centric operations and enhanced mission effectiveness. This paper describes a frequency re-use architecture that provides such return channel connectivity to a large number of users without requiring additional satellite bandwidth and with minimal interference to current receive-only users.

Published in:

Military Communications Conference, 2003. MILCOM '03. 2003 IEEE  (Volume:1 )

Date of Conference:

13-16 Oct. 2003