Dear all, Can someone help me to wite a code to simulate a wireless sensor cover I an working on ns2.26 patched with nrlsensor sim Regards Srirupa On Mon, 24 Jul 2006 [EMAIL PROTECTED] wrote : >Send Ns-users mailing list submissions to > ns-users@isi.edu > >To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.isi.edu/mailman/listinfo/ns-users >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Ns-users digest..." > > >Today's Topics: > > 1. Wireless packet size limit + wireless bandwidth question (Heo Heo) > 2. Re: transmission power for mobile nodes (Phil Miller) > 3. Re: Wireless packet size limit + wireless bandwidth question > (Phil Miller) > 4. runnig ns with argument? (a question about DMAC) (chen guoming) > 5. R: how to implement DCF in NS2 (Marco Fiore) > 6. Install the GPRS module (kaier) > 7. How to use SCTP application traffic ? (kerwin) > 8. Service based classification for SFQ/DRR (S.Mehdi Sheikhalishahi) > 9. Re: Simulate a delay and additional packet payload (Muth S) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Sat, 22 Jul 2006 17:18:26 -0700 (PDT) > From: Heo Heo <[EMAIL PROTECTED]> >Subject: [ns] Wireless packet size limit + wireless bandwidth question >To: ns-users@ISI.EDU >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=iso-8859-1 > > Hi all, > > I was doing a simple wireless simulation in which 2 nodes send are >placed next to each other, with one being the sender and the other being >the receiver (based on the Simple.tcl on ns website). The sender sends >500 packets to the receiver. > > 1) I tried to change the packet size from 512 to 1024 bytes. I parsed >the trace file I find out that: > - If the packet size is 512 bytes, 500 packets were sent. > - If the packet size is 1024 bytes, 1000 packets were sent. > > It seems to me that some layer has automatically split up the 1024-byte > packets >into smaller parts. > > So, my question is: what is the default wireless packet size, and how >to change it ? and Which layer actually split up the big packets ? > > 2) My next question is about the wireless bandwidth. > > By default, ns uses a wireless link bandwidth of 2 Mbps. By >changing the packet interval, I have at most 670 Kbps. Because there are only >2 nodes, the 2 nodes must be using full bandwidth for this. Given that >there are some overhead (RTS/CTS, packet headers, etc.), I would think >I should get about 1.5Mbps. So, why is the actual speed so much lower >than that ? Is it natural ? > > Thanks a lot for your help. > > Heo > > > > >--------------------------------- >Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates >starting at 1?/min. > >------------------------------ > >Message: 2 >Date: Sun, 23 Jul 2006 00:45:20 -0400 > From: "Phil Miller" <[EMAIL PROTECTED]> >Subject: Re: [ns] transmission power for mobile nodes >To: "M. Akif YAZICI" <[EMAIL PROTECTED]> >Cc: ns-users@ISI.EDU >Message-ID: > <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > Hello everyone, > > I am trying to simulate CAP-SV routing protocol for ad hoc networks, > > derived from AODV. I need to control the transmission power of each > > node and vary it according to the next hop since my protocol logs the > > min. power to reach each neighbor. Is there anyone who knows how to > > achieve this through C++? I tried the following and it did not work: > > > > Tcl& tcl = Tcl::instance(); > > tcl.evalf("Phy/WirelessPhy set Pt_ %f", myPower); > > > > Or, can I reach the WirelessPhy object through mac/mac-802_11.cc? > > There is a variable called "netif_" through which I can reach the > > nodes and their energy modules as netif_->node()->energy_model(), but > > the problem is netif_ is a "Phy *" instance, not "WirelessPhy *". > >Try casting it, something like >(WirelessPhy*)netif_->node()->energy_model() > > > Another thing is what is the relation between Pt_ and Pt_consume_? > >My best guess would be that in simulations where energy consumption is >relevant, Pt_ is the power output used to compute signal propagation >and reception, while Pt_consume_ is the power that the node expends >per unit time that it is transmitting. > > > I am supposed to complete my MS thesis in a month or so, so I am very > > short on time. Any help is appreciated. Thanks, > >Good luck with it! > >Phil > > > >------------------------------ > >Message: 3 >Date: Sun, 23 Jul 2006 01:08:56 -0400 > From: "Phil Miller" <[EMAIL PROTECTED]> >Subject: Re: [ns] Wireless packet size limit + wireless bandwidth > question >To: "Heo Heo" <[EMAIL PROTECTED]> >Cc: ns-users@ISI.EDU >Message-ID: > <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Heo, > >Have a look at ><http://www-ece.rice.edu/~jpr/ns/docs/ns-802_11b.html>. >It answers your direct questions. > >You may also wish to look at ><http://www.telematica.polito.it/fiore/index.html#downloads> >if you're interested in adjustments to simulate more recent chipsets >accurately. > >Phil > >On 7/22/06, Heo Heo <[EMAIL PROTECTED]> wrote: > > > > Hi all, > > > > I was doing a simple wireless simulation in which 2 nodes send are > > placed next to each other, with one being the sender and the other being > > the receiver (based on the Simple.tcl on ns website). The sender sends > > 500 packets to the receiver. > > > > 1) I tried to change the packet size from 512 to 1024 bytes. I parsed > > the trace file I find out that: > > - If the packet size is 512 bytes, 500 packets were sent. > > - If the packet size is 1024 bytes, 1000 packets were sent. > > > > It seems to me that some layer has automatically split up the 1024-byte > > packets > > into smaller parts. > > > > So, my question is: what is the default wireless packet size, and how > > to change it ? and Which layer actually split up the big packets ? > > > > 2) My next question is about the wireless bandwidth. > > > > By default, ns uses a wireless link bandwidth of 2 Mbps. By > > changing the packet interval, I have at most 670 Kbps. Because there are > > only > > 2 nodes, the 2 nodes must be using full bandwidth for this. Given that > > there are some overhead (RTS/CTS, packet headers, etc.), I would think > > I should get about 1.5Mbps. So, why is the actual speed so much lower > > than that ? Is it natural ? > > > > Thanks a lot for your help. > > > > Heo > > > >------------------------------ > >Message: 4 >Date: Sun, 23 Jul 2006 16:22:53 +0800 > From: "chen guoming" <[EMAIL PROTECTED]> >Subject: [ns] runnig ns with argument? (a question about DMAC) >To: ns-users@ISI.EDU >Message-ID: > <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Dear All: > I tried to implement DMAC into NS2.29 today and had some trouble.In the >simulation scripts, there is a file named ns-cbr-chain.csh. >the code is like below: > ns cbrchain.tcl -interval $interval -seed $seed -dst $dst -tr >cbrchain-${interval}-${dst}-${seed}.tr; > > ns-adap cbrchain.tcl -interval $interval -seed $seed -dst $dst -tr >cbrchain-adap-${interval}-${dst}-${seed}.tr; > > ns-more cbrchain-more.tcl -interval $interval -dst $dst -seed $seed >-tr cbrchain-more-${interval}-${dst}-${seed}.tr; > > We know we use "ns aaa.tcl" to exect a tcl file, but what's the meaning >of "ns-adap" and "ns-more" >Thank you very much! >Best regards! >David > > >------------------------------ > >Message: 5 >Date: Sun, 23 Jul 2006 10:04:21 +0100 (GMT+01:00) > From: Marco Fiore <[EMAIL PROTECTED]> >Subject: [ns] R: how to implement DCF in NS2 >To: <[EMAIL PROTECTED]>, <ns-users@ISI.EDU> >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain;charset="UTF-8" > >Hi, > >if you mean 802.11 DCF, it is already implemented. >See the ns >manual. > >bye, > >Marco > > >----Messaggio originale---- > >Da: >[EMAIL PROTECTED] > >Data: 22-lug-2006 5.40 PM > >A: <ns-users@ISI.EDU> > >Ogg: [ns] how to implement DCF in NS2 > > > > > >Hi > > I want to implement >DCF in NS2, can anybody help me in this regard. > > > > thank you very >much. > > > > BYE > > > > > >--------------------------------- > >See the >all-new, redesigned Yahoo.com. Check it out. > > > > > > >------------------------------ > >Message: 6 >Date: Sun, 23 Jul 2006 20:02:37 +0800 (CST) > From: "kaier" <[EMAIL PROTECTED]> >Subject: [ns] Install the GPRS module >To: ns-users@ISI.EDU >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset="gb2312" > >Hello all >I want to try GPRS simulation using Network Simulator. I have gotten that gprs >module but I can't install it successfully,when i run "ns",mistake show >as:invalid command name "Agent/NOAH" while executing "Agent/NOAH; set sport_ > 0" >i guess the noah was not installed.but i dont know how to install it,anybody >knows? >can you mail me the answer? >thanks > > > > >------------------------------ > >Message: 7 >Date: Mon, 24 Jul 2006 00:06:33 +0800 > From: kerwin <[EMAIL PROTECTED]> >Subject: [ns] How to use SCTP application traffic ? >To: ns-users@ISI.EDU >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=big5 > >Hi all, >I saw the "sctp.{h, cc}" source codes in "~ns-2.29\apps" directory. >How to use the SCTP application traffic in tcl scripts ? >Thank a lot ! > >kerwin > > > >[EMAIL PROTECTED] ?qXuite?}?l >http://www.xuite.net > > >------------------------------ > >Message: 8 >Date: Sun, 23 Jul 2006 21:07:24 +0430 > From: "S.Mehdi Sheikhalishahi" <[EMAIL PROTECTED]> >Subject: [ns] Service based classification for SFQ/DRR >To: ns-users <ns-users@ISI.EDU>, [EMAIL PROTECTED], Paul McKenney > <[EMAIL PROTECTED]> >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset="iso-8859-1" > >Hello, > I changed SFQ/DRR to support service based classification for SFQ/DRR. >Please take a look at this queueing and give me results about your ideas >and evaluation. > >-- >Best Regards, >S.Mehdi Sheikhalishahi, >Bye. > > >------------------------------ > >Message: 9 >Date: Sat, 22 Jul 2006 13:37:41 -0700 (PDT) > From: Muth S <[EMAIL PROTECTED]> >Subject: Re: [ns] Simulate a delay and additional packet payload >To: [EMAIL PROTECTED], ns-users@ISI.EDU >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=iso-8859-1 > >Hi > thanx Mr Sanjay ... additional to what i asked u in your email > did u mean > > for the packet extra payload u said in ns-default.tcl .... but which value > should be changed? shoul i add to the changed parameter the payload i need+ > default size or remove the previous size and replace it with the new one > > As for the extra additional delay delay...when u link 2 nodes u will > specify the delay between them... is that means its the extra delay on > delievering the packet... > ex: > #Create links between the nodes >$ns duplex-link $n0 $n2 2Mb 10ms DropTail > > so here the delay is 10ms.... is it correct or schedule function is > something else > > thanx in advance > > >Sanjay Raghani <[EMAIL PROTECTED]> wrote: > Hi, > To introduce packet payload, you can modify the size parameter of a > packet. The default values are specified in ns-default.tcl. > > To introduce the delay, use the schedule function instead of send function. > Delay value can be specified as one of its arguments. > > Sanjay Raghani > > ------------------------------ > > > > > >--------------------------------- >Yahoo! Music Unlimited - Access over 1 million songs.Try it free. > >------------------------------ > >_______________________________________________ >Ns-users mailing list >Ns-users@isi.edu >http://mailman.isi.edu/mailman/listinfo/ns-users > > >End of Ns-users Digest, Vol 31, Issue 25 >****************************************
