[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 power consumption.But i don't have any source for taking such values inside ns.for e.g what is the value of TXPOWER_ and Pt_ for a transmision range of 100m,200 etc.I can get Pt_ value for that but what value can i put for txpower_ which is the power used for energy consuption calculation.I am totally confused with this.Please help me. Best wishes Vinay
[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 illimitée pour vos emails. http://mail.yahoo.fr
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 use the the same thing with double the transmission range. Hope it will help you to some extent On Mon, Mar 24, 2008 at 5:55 PM, king kouka [EMAIL PROTECTED] wrote: 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 illimitée pour vos emails. http://mail.yahoo.fr
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 Phy/WirelessPhy set RXThresh_ 3.652e-10 Phy/WirelessPhy set Pt_ 0.2818 These are the parameters u have to set at the starting of the tcl script. Best regards Vinay On Mon, Mar 24, 2008 at 7:15 PM, king kouka [EMAIL PROTECTED] wrote: hi ok, suppose I run threshold.cc as given by http://overegoz.tistory.com/668 in my tcl, I have created GOD for lot of nodes and have $ns_ node-config -adhocRouting AODV \ -phyType Phy/WirelessPhy \ so, how can I input the change into my ns.tcl script? Thanks - Message d'origine De : vinay kumar [EMAIL PROTECTED] À : king kouka [EMAIL PROTECTED] Cc : ns-user ns-users@isi.edu Envoyé le : Lundi, 24 Mars 2008, 13h55mn 50s Objet : 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 use the the same thing with double the transmission range. Hope it will help you to some extent On Mon, Mar 24, 2008 at 5:55 PM, king kouka [EMAIL PROTECTED] wrote: 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 illimitée pour vos emails. http://mail.yahoo.fr -- Envoyé avec Yahoo! Mailhttp://us.rd.yahoo.com/mailuk/taglines/isp/control/*http://us.rd.yahoo.com/evt=52426/*http://fr.docs.yahoo.com/mail/overview/index.html . Capacité de stockage illimitée pour vos emails.
[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. Thanks in advance. Yuva Jash
