GRS: a dynamic GBS downlink beam scheduling tool

Author

Goldstein, David J. ; Eccles, David S.

Author_Institution

Dept. of Modeling & Simulation, Aerosp. Corp., Los Angeles, CA, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

3

Abstract

A preliminary apportionment plan governing the allocation of Global Broadcast Service (GBS) spot beams among users was proposed in May 1997. A tool known as the GBS Resource Scheduler (GRS) has been developed to analyze the behavior of a single agile spot beam downlink. The downlink serves multiple destinations that are too far apart from one another to be covered by a single footprint. These results can be used to determine a beam schedule for a given scenario. The use of a fixed beam schedule is discussed and contrasted with a dynamic approach. A need function, used to determine where the spot beam should move, is described in detail along with each of the input parameters which comprise the function. The influence of each parameter on spot beam behavior is demonstrated quantitatively along with the interplay of between different inputs to the priority function and their overall effect on the beam schedule itself. An outline for generating improved beam schedules is then described

Keywords

digital simulation; direct broadcasting by satellite; military communication; scheduling; telecommunication network routing; telecommunication traffic; GBS Resource Scheduler; Global Broadcast Service; apportionment plan; beam schedule; dynamic GBS downlink beam scheduling; fixed beam schedule; improved beam schedules; multiple destinations; need function; single agile spot beam downlink; spot beams; Aerodynamics; Aerospace simulation; Communication system traffic; Costs; Downlink; Dynamic scheduling; Satellite broadcasting; Telecommunication traffic; Traffic control; Transponders;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace Conference, 1999. Proceedings. 1999 IEEE

Conference_Location

Snowmass at Aspen, CO

Print_ISBN

0-7803-5425-7

Type

conf

DOI

10.1109/AERO.1999.790184

Filename

790184