Hi all,

I have an interesting question about both NS-2 and AODV routing protocol.

I have currently implemented Dropping, Blackhole and Flooding attack in AODV, and measured the metrics. (Packet delivery ratio, overhead, E2E etc).

My question is all metrics except E2E delay is logical. But E2E delay is decreasing as malicious nodes increase. In my opinion, any malicious node should increase the E2E delay. 

My thought is this, when E2E is calculated, only the packets that arrive to destination are counted. When malicious nodes increase, less packet is arriving to the destination. So, less packet delivered in a short time. But, if a packet is dropped along the way, it should have some effect to the network. Am i wrong? I think this should require some mathematical, statistical model.

In flooding attack, E2E increases as I expected. My problem is only in dropping attacks. 

My nodes are mobile (variable speed), and my node number is 35.

I would be very appreciate, if you could enlighten me, or guide me.

Kind regards.

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