Simulation Parameters
mobile node velocity: 3.6, 10, 25, 50, and 90 km/h (45 nodes)
satellite capacity: 20Mb/s
reachback capacity: 51200, 5120, and 480 b/s/node
reachback BER: 10E-10, 10E-8, and 10E-6
data traffic: 2000 packets evenly distributed among mobiles