Title :
FDMA implementation for domestic mobile satellite systems
Author :
Wachira, Muya ; Bossler, Dan ; Skerry, Brian
Author_Institution :
Telesat Mobile Inc., Ottawa, Ont., Canada
Abstract :
MSAT (the domestic mobile satellite system for North America, planned for the 1990s) is briefly described. The considerations that led to the choice of FDMA/SCPC (frequency division multiple access/single carrier per channel) as the primary access scheme for MSAT are discussed. Service requirements and practical constraints are examined. It is shown that, in a shadowed environment, FDMA leads to an efficient use of satellite power while providing good link availability. Also, because of the inherent flexibility of narrowband carrier assignments within the shared MSS (mobile satellite service) bands, FDMA can provide ample coordinated spectrum for all MSS operators
Keywords :
carrier communication; frequency division multiple access; mobile radio systems; satellite relay systems; FDMA implementation; FDMA/SCPC; MSAT; domestic mobile satellite systems; frequency division multiple access; link availability; narrowband carrier assignments; primary access scheme; shadowed environment; shared MSS bands; single carrier per channel; Bandwidth; Base stations; Circuits; Communication system control; Frequency division multiaccess; L-band; Resource management; Satellites; Time division multiple access; Transponders;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.64066
