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Optimization of orbital assignment and specification of service areas in satellite communicationsThe mathematical nature of the orbital and frequency assignment problem for communications satellites is explored, and it is shown that choosing the correct permutations of the orbit locations and frequency assignments is an important step in arriving at values which satisfy the signal-quality requirements. Two methods are proposed to achieve better spectrum/orbit utilization. The first, called the delta S concept, leads to orbital assignment solutions via either mixed-integer or restricted basis entry linear programming techniques; the method guarantees good single-entry carrier-to-interference ratio results. In the second, a basis for specifying service areas is proposed for the Fixed Satellite Service. It is suggested that service areas should be specified according to the communications-demand density in conjunction with the delta S concept in order to enable the system planner to specify more satellites and provide more communications supply.
Document ID
19870018449
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Wang, Cou-Way
(Ohio State Univ. Columbus, OH, United States)
Levis, Curt A.
(Ohio State Univ. Columbus, OH, United States)
Buyukdura, O. Merih
(Ohio State Univ. Columbus, OH, United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1987
Subject Category
Communications And Radar
Report/Patent Number
NAS 1.26:181273
REPT-716548-7
NASA-CR-181273
Accession Number
87N27882
Funding Number(s)
CONTRACT_GRANT: NAG3-159
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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