Wireless networks performance varies from wired networks, the latter uses a guided medium and…

Wireless networks performance varies from wired networks, the latter uses a guided medium and

wireless networks use unguided medium for transmission. To design and simulate wireless networks

the network simulator – 2 (NS – 2), an open source discreet event simulator could be used. The NS-2

simulator is a widely used simulation tool, which could generate trace files for analysis and comes

with a network animator to visualize the network performance.

This assessment requires students to compare and evaluate the performance of wireless routing

protocol using the NS – 2. The assessment requires students to design a wireless network topology in

NS – 2 and evaluate the generated trace files for a wireless routing protocol. The students are required

to carry out a critical analysis of the results of the protocol by plotting graphs and discussing the


The students are required to:

? Design a wireless network consisting of 25 nodes; the dimensions for the given topology are

1000×800. The agent type should be User Datagram Protocol (UDP) and the traffic Constant

Bit Rate (CBR). The simulation should run for 300 seconds. Random deployment of nodes is

required and the nodes are required to transmit packets over the network. The wireless node

configuration should include the NS – 2 energy model.

? Run the simulation on routing protocol Destination Sequenced Distance Vector Routing

(DSDV) and Ad hoc On DemandDistance Vector (AODV). Critically analyse the trace files in

terms of packets sent, received and dropped. These parameters should be plotted on graphs

and discussed in detail.

? Include screenshots of the NAM (Network Animator) displaying the nodes deployed during

the simulation and add screen shots of the simulation.

? Conduct comparative analysis on the results for packets sent, received anddropped for the

two protocols.

? Appendix I should include the tcl srcript used in each simulation.

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