Title :
Performance study of low Earth-orbit satellite systems
Author :
Ganz, Aura ; Gong, Yebin ; Li, Bo
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
Abstract :
Considerable interest has been focusing on the possibility of employing a large number of low Earth orbit (LEG) satellites to provide an overall global coverage. However, there has been no performance study of such systems. The authors investigate the performance of low Earth orbit-satellite systems in terms of the system capacity, the average number of beam-to-beam handoffs and satellite-to-satellite handoffs the channel occupancy distribution and the average call drop probability. These performance measures are obtained as a function of: (1) the network constellation, (2) the satellite speed, (3) the cell size, and (4) the average transaction duration. These metrics are exemplified on the Iridium system. The results derived provide useful and simple tools for system design as well as for system analysis
Keywords :
probability; satellite relay systems; Iridium system; average call drop probability; average transaction duration; beam-to-beam handoffs; cell size; channel occupancy distribution; global coverage; low Earth-orbit satellite systems; network constellation; performance measures; performance study; satellite speed; satellite-to-satellite handoffs; system analysis; system capacity; system design; Artificial satellites; Communication switching; Extraterrestrial measurements; Land mobile radio cellular systems; Low earth orbit satellites; Mobile communication; Satellite broadcasting; Size measurement; Switching circuits; Velocity measurement;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.1994.582896
