Simulation Environment
n NS2
Ø Widely used network simulator
Ø Simple physical model (free space propagation plus two-way
ground reflection)
Ø MAC: 802.11 RTS/CTS
Ø Provides support for node mobility, unicast protocols such as DSR,
AODV for ad hoc networks already implemented
n Simulation parameters
Ø 1000 x 1000 meter area, 250 m radio range, 2 Mbps link capacity
Ø 50 nodes, 1 multicast group
Ø 900 seconds simulation time
Ø Mobility model: Random Waypoint model, 0 seconds pause time,
max speed between 1 m/s to 20 m/s
Ø Traffic: CBR (4 packets of 512 bytes per second and sender)
Ø Parameters varied: Number of Senders, Node Mobility, Group Size