Thomas Kunz
Systems and Computer Engineering
7
Simulation Environment
nNS2
ØWidely used network simulator
ØSimple physical model (free space propagation plus
two-way ground reflection)
ØMAC: 802.11 RTS/CTS
ØProvides support for node mobility, unicast protocols
such as DSR, AODV for ad
hoc networks already implemented
nSimulation parameters
Ø1000 x 1000 meter area, 250 m radio range, 2 Mbps link
capacity
Ø50 nodes, 1 multicast group
Ø900 seconds simulation time
ØMobility model: Random Waypoint model, 0 seconds pause
time, max speed between 1 m/s
to 20 m/s
ØTraffic: CBR (4 packets of 512 bytes per second and
sender)
ØParameters varied: Number of Senders, Node Mobility,
Group Size