Teletraffic analysis and simulation for nongeostationary mobilesatellite systems

摘要

The teletraffic performance parameters of a nongeostationarynsatellite system are estimated through analytical and simulationnmethods. In order to reduce the number of assumptions, the simulationntool that was developed emulates a mobile satellite system that isncloser to the real thing. Parameters of interest include blocking,nhandover failure, noncompletion, and forced-termination probabilities.nThese are analyzed in terms of variations in satellite spot cellsncoverage, overlapping between cells, and in terms of a mobility factor.nAdditionally, the effect on the grade of service of different channelnassignment strategies, for handover purposes, are investigated. Thenresults show that the analytical work is in good agreement with thensimulation outcome