Re: [ns] help needed in performance comparison of AODV, DSR and DSDV routing protocol

2011-04-12 Thread mikes1313


Hi I want to compare my AODV.tcl including DSDV and DSR the only change I
have to make is the set val (rp) from AODV-DSDV and then to DSR. 


THNAKS 
mike

...

Salahedin wrote:
 
 Hi,
 
 I am doing exactly the same and my results are similar to yours. I was
 thinking that I have some problems with the tcl or wak file but I am now
 starting changing some configuration like node speed to try to get better
 statistics. Anyway, can you send me the awk file you used as well as the
 traffic and movement specification so I would be able to see if we get the
 same results. My email is s_l_h_3[at]yahoo[dot]es
 
 Thanks
 
 Haripriya Nair wrote:
 
 
 
 ankur goyal wrote:
 
 
 Hi All,
 
 I have written a tcl script and an awk script to evaluate the
 performance of
 AODV, DSR and DSDV protocols in terms of average delay and total number
 of
 packets received and dropped. But i am getting very absurd results when
 i
 run my script to extract the data.
 
 My results are as follow:
 
 for DSR:
 
   Generated Packets = 46904 PACKETS
   Received Packets = 1227 PACKETS
   Total Dropped Packets = 12443
   e2e delay = 3.911883
 
 for AODV:
 
   Generated Packets = 12362 PACKETS
   Received Packets = 3221 PACKETS
   Total Dropped Packets = 9105
   e2e delay = 0.007428
 
 I believe that there is something wrong in my script which i am not able
 to
 figure out.
 
 So can anyone provide me a tcl script for AODV, DSR and DSDV protocols
 such
 that all the required data are extracted from trace files in TCL scripts
 only rather than using AWK script separately.
 
 Eagerly waiting for a quick reply as i need it urgently.
 
 Thanks  Regards,
 Ankur
 
 
 
 
 
 

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[ns] Can I run multiple instances of ns2 at the same time?

2011-04-12 Thread Lupe Krops

Hi,


Is it possible to run multiple instances of ns2.34 on cygwin at the 
same time? Do I need to setup any configurations?  I want to 
run a different simulation script on each instance...

Thank you.

Regards,
Lup.


[ns] Help to simulate the algorithm

2011-04-12 Thread rajeev bharshetty

*  QOS-A Novel Multipath Routing*

*Algorithem Protocol For Ad Hoc Networks*


 Algorithm QAMRouting()

   1.

   Create nodes by allocating bandwidth randomly.
   2.

   Set transmission range of each and every node i .
   3.

   Initialize cache tables with their range nodes and initially allocated
   bandwidth.
   4.

   Select destination from source node i.
   5.

   Flood RREQ(SrcID,ReqID,DestId,QoS,Nutilization) to all neighbor nodes of
   node i


   1.

   For each node j do

Calculate available bandwidth of node j

If(RREQ.QoS AvailableBW of node j)

Descard the RREQ

Else

If(node j is equal to RREQ.Destid)

Send RREP to source node i

Goto 8.

Else

callWait(0.1)

//allow many/all the RREQ’s to reach the node j

If more then one RREQ’s which has same *SrcID  ReqID* ,

Chose the RREQ which has the least Nutilization


 Calculate node j’s Nutilization

If(RREQ.NutilizationNutilization of node j)

RREQ.Nutilization Nutilization of node j //Update RREQ

// Record the route in the cache j table

Append node j in the “path” string and update cache j



   1.

   Goto step 5
   2.

   Send RREP to the Source
   3.

   Start Communication

Send data from source to destination through the reliable path computed
earlier.




Help me to simulate this algorithm

 ns-2


Please help


[ns] Scheduler::instance().clock() in ns.2.30

2011-04-12 Thread molly

Hi all,

Can anybody tell me something about Scheduler::instance().clock(), the
function returns system time, what kind of system time it returns? Does the
return time including the current system date and time or something else?? 



[ns] Problem in GPSR simulation

2011-04-12 Thread Zakia Khalfallah





Hi friends, 
i'm trying to simutate GPSR protocol.For the organization of the directories, i 
put these informations in the correspondant .sh file

proto=GPSR
simdir=gpsrsimulation
statdir=stat
scendir=$simdir/scen
trafdir=$simdir/trafic


when i execute the simulation file .sh it shows me this error 

num_nodes is set 50
couldn't open gpsrsimulation/GPSR.tr: no such file or directory
while executing
open $opt(tr) w
invoked from within
set tracefd[open $opt(tr) w]
(file simulation.tcl line 166)
tail: cannot open `statfile' for reading: No such file or directory


How can i deal with this error? 
Thank you 
ZAK
  


Re: [ns] [NS-ANS] Re: help regarding ARQ

2011-04-12 Thread amareswararao k

Thank you very much for the replay
But I want to implement to wireless model I am using 802.11 as mac protocol
If you have any idea please replay



From: Teerawat@UBC teera...@ece.ubc.ca
To: amareswararao k amar_21cent...@yahoo.co.in
Cc: ns-users@isi.edu ns-users@ISI.EDU
Sent: Tuesday, 12 April 2011 7:46 AM
Subject: Re: [NS-ANS] Re: [ns]  help regarding ARQ

HI,

If you are interested in implementing ARQ in NS2, please read

http://www.ns2ultimate.com/post/1539258323/arq-module-program-update

Best Wishes,

Teerawat Issariyakul
http://www.ns2ultimate.com/
http://www.facebook.com/pages/Teerawat-Issariyakul/358240861417
http://twitter.com/T_Bear
http://www.t-issariyakul.blogspot.com
http://www.ece.ubc.ca/~teerawat



On Apr 11, 2011, at 11:52 PM, amareswararao k wrote:

 
 could any one please give me a suggestion about link layer ARQ
 or any website
 


[ns] some questions of AODV in ns2.30

2011-04-12 Thread molly

Hi all,

I want to modify AODV but I encounter some questions and have no ways to
make it. The situation is like this:

I want the destination node to record the received RREQ packets within the
nearest five seconds. And compare a certain field to choose the best path to
send the RREP.

I know the destination node needs to wait some time for all the RREQ packets
to arrive, but I do not how to write a c++ code to record the RREQs and
choose the best node. Can anybody give me some advice to solve this
problem?? Thanks a lot!!!

 



[ns] How to calculate end-to-end delay without queuing delay?

2011-04-12 Thread ritika sharma


Hello ns-users, 

First of all, sorry if this is a stupid question. I am completely new in 
simulation. 

I want to compare simulation result with my mathematical model result. 
In 802.11b simulation, I need to calculate end-to-end packet delay without 
queuing delay. 
How can I calculate total queuing delay separately using ns-2?
Or, pls. tell me the easiest way to modify code to calculate end-2-end delay 
without queuing delay. 




Regards, 
Ritika
  


[ns] xgraph ERROR

2011-04-12 Thread s s

In the name of God
Dear friends
Hi

when we want to run xgraph in our tests, 
we write in stop proc the bellow commands:
exec xgraph out.tr

and we have ERROR:
couldn't execute xgraph:no such file or directory.

would you please help me?

Best Regards
Sarah


[ns] Grid environment

2011-04-12 Thread s s

In the name of God
Dear friends
Hi

When we use the routing protocol that made base on Grid ,how we can see it? can 
we see it in nam or not?

Best Regards
Sarah


[ns] Guidance for How to start with my algo

2011-04-12 Thread Sudhanshu Pant

HI
i m working on WSNs
my algo requires flooding a message to all the nodes periodically.
on receiving the message by a node , its coordinates decides whether it
should be made a dissemination node or not.
kindly suggest me how to start with this
i mean which classes and methods are required for this, and in which file i
should implement it. like which thing in .cc file and which in .tcl file.
this is somewhat same as TTDD ,if somebody is having the code for the same
plz send it also.


Sudhanshu Pant