[ns] controlling broadcast packets

I'm implementing a broadcast-based protocol. I have a problem in controlling the broadcasting. How can a node check if it has received a broadcast packet before. My nodes are receiving the same packet coming from different neighbors.

[ns] help related to simulation of power control protocol in mac layer

hi i am doing project on power control mac protocol for wireless ad-hoc networks .DOes anyone have idea regarding how to set different power transmission levels for different ranges.Actually i need to map certain power transmit i.e Pt_ values and battery power i.e txPower_ inorder to calculate

[ns] change transmission range

Hi all, I want to change the transmission range for a specific work By default, it is 250m and I want to have 1000m. How to process regards _ Envoyez avec Yahoo! Mail. Capacité de stockage

Re: [ns] change transmission range

for changing the transmission range you need to change the RXThreshold value which indicates the receiver sesitivity.SO to get the value for that you can use ~/ns../indep-utils/propagation/threshold program.by using that you can get the value for of Rxthreshold and for carier sense threshold just

Re: [ns] Re : change transmission range

Ok let us supose the Pt_ value is 0.282w . At that transmission power level to have transmission range of 250m RxThreshold 3.65472e-10.If you take carier sense range double the tx range ie 500m the csthresold will be 1.559e-11. So set it like this Phy/WirelessPhy set CSThresh_ 1.559e-11

[ns] Malicious nodes creation

Hello, We are working on improving the security aspects of AODV. We have implemented a trust based algorithm for AODV and we wish to test it using malicious nodes. We are not able to create malicious nodes ( nodes that drop packets ). We are in the final stage of our project. Kindly help us.