Experimenting with Throughput vs Time for 80211P wifi standard

[Salman Imtiaz]

Hi NS-3 users,

I am new to NS-3 and presently experimenting with 80211P wifi standard, 

phymode "OfdmRate6MbpsBW10MHz", 

DataRate "1Mbps", 

Application "onoffapplication" with OnTime"1.0" and OffTime "0.0", 

Packet Size 64

Two nodes at a distance of 5 units on x-axis, one sink

Simulation Time = 200

I am taking output of throughput using flow-monitor and formula 

Throughput = stats->second.rxBytes * 8.0 / (stats->second.timeLastRxPacket.GetSeconds()-stats->second.timeFirstTxPacket.GetSeconds())/1024/1024

and plotting with using GNUPLOT vs time (seconds)

Well my question is the output graph confused me a little as I was expecting a constant throughput, but simulation starts, the trend showed is increasing throughput over period of around 50 and then becomes constant.

I would like to know what does the exponential increase if throughput mean between period of 0-50, I have attached the graph beloe, If any further information required, I can provide regarding my code. Most of the help I took from past discussions on this forum, doxygen documentations, examples and tutorials. Thanks.

[ABHIRAJ M R]

How can n we prevent black hole attack by using some kind of modification in aodv can you plse send any kinds of code with such modification

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