Title :
Availability calculations for mobile satellite communication systems
Author_Institution :
Ericsson Inc., Research Triangle Park, NC, USA
Abstract :
We calculate the availability of circuit service to a user in a mobile satellite communication system. The availability, i.e., the percentage of time the user can expect to communicate reliably using the communication system is a function of the power available to the user and the channel (Rician or Rayleigh fading) encountered by the user. In a mobile satellite communication system, the channel is a function of user position, the number of satellites visible to the user, and their positions. Using a simulation of the constellation orbits and an associated channel model, we calculate the availability provided by various proposed mobile satellite communication systems that use LEO and MEO satellites. A conclusion of this paper is that the visibility of multiple satellites is imperative for high availability
Keywords :
Rayleigh channels; Rician channels; fading; mobile satellite communication; telecommunication network reliability; LEO satellites; MEO satellites; Rayleigh fading; Rician fading; availability calculations; channel model; circuit service availability; constellation orbits; mobile satellite communication systems; multiple satellites visibility; satellite position; simulation; user position; Artificial satellites; Availability; Circuits; Data communication; Low earth orbit satellites; Orbital calculations; Power system modeling; Power system reliability; Satellite communication; Statistics;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.501468
