[ns] Traffic generation to analyse performance of 802.15.4
Hi, Could anyone advice me how to generate the traffic for analysis. Basically, i've generated a mobility file based on ocean movement and it last for 24hrs. Not sure what and how traffic pattern can be generated. Appreciate for any advice, thanks. Regards, Kwang _ Get an advanced look at the new version of MSN Messenger. http://messenger.msn.com.sg/Beta/Default.aspx
[ns] sensor node configuration
> > Hello for all, > > Can you give me the tcl script of wireless sensor node configuration? > > Best Regards. > >
[ns] sensor node configuration
Hello for all, Can you give me the tcl script of wireless sensor node configuration? Best Regards. - Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses.
[ns] How do you Drop packets!
Hi everyone! I need to implement aggregation on the wireless sensor network, so for starters i just want to drop all the packets but one, when i receive them, and just send one packet forward. I think i need to change the mac-tdma.cc file for that, but i'm not too sure. Can any of you please help me in my dilemma. Also if you can tell me how would i drop packets? Should i just free the packet? Thank you very much in advance for all the help. Thanking you Regards, Fatema.
[ns] How rerun the following simulation with different settings of the delay
Dear ns-users,
I need your help to reduce my efforts. I need automatic way to change the
parameters.
let's assume I need to get the performance of the following design for
different values of the delays between the nodes:
set opt(start0) 0
set opt(start1) 100
set opt(stop) 101.0
# creats simulater object
set ns [new Simulator]
## traceing ##
set tracTF[open TCP.tr w]
set nf [open TCPflavor.nam w]
#
$ns trace-all $tracTF
$ns namtrace-all $nf
set TCPs [$ns node]
set TCP_BS [$ns node]
set TCPr [$ns node]
$ns duplex-link $TCPs $TCP_BS 10mb 0ms DropTail
#
$ns make-lan "$TCP_BS $TCPr" 2mb 150ms LL Queue/DropTail Mac
set tcpw [new Agent/TCP/WestwoodNR]
set sinkw [new Agent/TCPSink]
$ns attach-agent $TCPs $tcpw
$ns attach-agent $TCPr $sinkw
$ns connect $tcpw $sinkw
set ftp1 [new Application/FTP]
$ftp1 attach-agent $tcpw
$ns at $opt(start0) "$ftp1 start"
$ns at $opt(start1) "$ftp1 stop"
$ns at $opt(stop).1 "$TCPs reset";
$ns at $opt(stop).1 "$TCP_BS reset";
$ns at $opt(stop).1 "$TCPr reset";
#
$ns at $opt(stop).0001 "record"
$ns at $opt(start5).001 "puts \"NS EXITING...\" ; $ns halt"
$ns at $opt(start5).001 "stop"
###
proc stop {} {
global ns nf tracTF
$ns flush-trace
#close tracTF
close $nf
exit 0
}
proc record {} {
global sinkw
# get an instance of the simulater
set ns [Simulator instance]
set bww[$sinkw set bytes_]
puts "***"
puts "throughput is: [expr $bww/100*8]"
puts "***"
}
puts "Starting Simulation..."
$ns run
the previous code gives me the throughput for just one case I need to
make dynamic changes for the delay (150ms) in:
$ns make-lan "$TCP_BS $TCPr" 2mb 150ms LL Queue/DropTail Mac ….. such as 0,
10, 20, 30 ….., 150 and register the throughput of each case (delay )
your help is appreciated
best regards
[ns] how to use a timer in network layer ?
hi, i m simulating ad hoc networks with ns2.27 and i want to modify the priority of each flow every second, my question is : can i and how use a timer in network layer ? or have you another solution! thanks
[ns] Inserting a Delay Module in MAC
Hi everyone, I would like to insert a timer in the NetIF of my node so that every packet going up towards the MAC and down towards the channel is held for a certain "delay_" time. This is to simulate an 802.11 network and analyse the RTS,CTS,ACK frames. In other words, making sure that all these packets go through this delay. Where should I start and what should I do? Thanks, Bahman. _ Windows Live Messenger has arrived. Click here to download it for free! http://imagine-msn.com/messenger/launch80/?locale=en-gb
[ns] Mesh Networking 802.11s with ns-2.28
hi all, I am using ns-2.28, i want to simulate and analyse Mesh Networking with ns2-28. did any one work with it or can give some tips ? how can i configre a BaseStation with one wireless-channel to multi-Channel, or how to change the wire-link into wirelss-link? thanks in advance - Keine Lust auf Tippen? Rufen Sie Ihre Freunde einfach an. Yahoo! Messenger. Jetzt installieren .
[ns] linked lists in ns Problem
hi the list, i created my own linked list (in priqueue.cc) but there is a problem : there is always a node in the list wich has all valu equal to "0". where did ns make the initialisation? or how can i eliminate it! thanx
[ns] TKN 802.11e with RTS/CTS
Hi ns-useres, I would like to know how can I add RTS/CTS to the TKN 802.11e model for NS2_26. I've tried by setting RTSTHhereshold_ 0, but my simulation abort telling me something like: (0) RECEIVING DATA!!! (0) RECEIVING DATA!!! (0) RECEIVING DATA!!! ... I really need to know if it is possible to do it and how. Thank you very much, Michele Nuti
[ns] simulation of multicast protocol in adhoc networks
hi all can anyone suggest me, how can i simulate multicast protocols in ad hoc networks thanks in advance. - Find out what India is talking about on - Yahoo! Answers India Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8. Get it NOW
