tcl script for VBR traffic
how to write tcl script for VBR traffic
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Is this the correct code for generating VBR Traffic
set vbr [new Application/Traffic/VBR]
$vbr set rate_ 448Kb $vbr set rate_dev_ 0.25 $vbr set rate_time_ 2.0 $vbr set burst_time_ 1.0 $vbr set n_o_changes_ 10 $vbr set time_dev_ 0.5 $vbr set constant_ false $vbr set maxrate_ 648Kb $vbr set packetSize_ 210 $vbr set maxpkts_ 268435456 I have got this code from http://ns2blogger.blogspot.in/2014/0...tation-in.html I am using NS-2.35 Version |
← ref. #3.
http://ns2blogger.blogspot.in/2014/0...tation-in.html .. is incomplete. Seems based on http://code.google.com/p/txsys/sourc...ate%253Dclosed → $ svn checkout http://txsys.googlecode.com/svn/trunk/ txsys-read-only → txsys-read-only/ubiquitous/ns2/src/{ .., .., vbr_traffic.cc }, txsys-read-only/ubiquitous/ns2/vbr/ \ { cbr-sim.tcl, vbr-expo.tcl, vbr-normal.tcl, vbr.plot, vbr-uniform.tcl }. Quote:
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Is VBR Traffic and Exponential traffic same?
what are Makefile.in & vbr_traffic.o? Where can we get them? How to Include vbr_traffic.o in Makefile.in? |
← ref. #3.
Quote:
`vbr_traffic.o´ is an object file. → Is the compiled result from vbr_traffic.cc → And is linked together with ~400 other objects, into one file : ns. Please do : $ svn checkout http://txsys.googlecode.com/svn/trunk/ txsys-read-only ... to get ( also ) .... txsys-read-only/ubiquitous/ns2/{ Makefile.in, src/vbr_traffic.cc } Quote:
https://www.google.com/webhp?hl=all&...l=en&q=ns2+vbr - |
How to include vbr_traffic.cc in Makefile.in
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← ref. #7.
» include vbr_traffic.cc in Makefile.in « : Read the link in your post #3 : "" 1. Include vbr_traffic.o in Makefile.in "". I.e. files.cc are not mentioned in a Makefile*. The objects to be created are. Makefile.in is a text file. Easy to read. Or use 'grep' : Code:
$ cd txsys-read-only/ubiquitous/ns2/ Which you can see in your Editor, when opening Makefile.in for reading. .... So nothing to add ! vbr_traffic.o is already present. - |
the Makefile in my NS-2.35 has a little difference in code when compared to the Makefile in http://txsys.googlecode.com/svn/trun...s2/Makefile.in. Should I repalce the original with this new one?
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← ref. #9.
Quote:
<TAB>tools/expoo.o tools/cbr_traffic.o tools/vbr_traffic.o \ ... and make sure that vbr_traffic.cc is in tools/. And then run ./install in the top directory ns-allinone-2.35/. - |
what is "Run make depend in ns-allinone-2.35"?How is this done?
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← ref. #11.
All commands are done from the script ns-allinone-2.35/install : That's the command $ ./install "install" is a text file, see the ns-2.35 section, lines 531-553, if you are using the 2011 version ns-allinone-2.35.tar.gz . If it's the updated version, 2014 : Then the lines 578-587. Conclusion : The way to run 'make' is $ ./install Besides that, ./configure && make clean && make doesn't work in ns-2.35. That was for the earlier ns2 versions. Also : Saved some time when just running 'make'. Old slow computer could use ~15 minutes for ./install. Not an issue with a modern computer. 'make depend' is done automatically in the right way with ./install, which runs 'make' in ns-2.35/. A manual 'make depend' has never been attempted. Somebody wrote 'make depend' many years ago. And all the young students just repeat it in their texts. → → Don't believe everything you read on the Internet. - |
My Makefile is:
# # Copyright (c) 1991,1993 The Regents of the University of California. # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # 3. All advertising materials mentioning features or use of this software # must display the following acknowledgement: # This product includes software developed by the Computer Systems # Engineering Group at Lawrence Berkeley Laboratory. # 4. Neither the name of the University nor of the Laboratory may be used # to endorse or promote products derived from this software without # specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF # SUCH DAMAGE. # # @(#) $Header: /cvsroot/nsnam/nam-1/Makefile.in,v 1.54 2011/11/02 16:31:26 tom_henderson Exp $ # Code:
# Top level hierarchy Where should I include tools/vbr_traffic.o\? |
1 Attachment(s)
Ihave run the command ./install
But I am getting some error Ihave attached the screenshot of the error Please suggest the solution |
← ref. post #13.
Not Makefile, but 204 random lines from the Makefile.in . The valid Makefile.in, ns-2.35 has 625 lines. * Code like post #13 must be in CODE tags. You can see how code tags look like in post #8. Please edit post #13 to code tags, or delete the most .. . http://www.linuxquestions.org/questi....php?do=bbcode . http://www.linuxquestions.org/questi...gs-4175464257/ I.e. it's the ` # ´ button in the 'Advanced Editor'. Editing : The 'Edit' button → → "Go Advanced". .. Or you can type [/code] at code end, and [code] at code text start. ← post #14 : You have missing "ns2 prerequisites". Which OS are you using ? Name and version, please. Prerequsites, Ubuntu : $ sudo apt-get install \ g++ g++-4.4 automake patch make libtool libxmu-dev xgraph Fedora, CentOS : # yum install gcc-c++ autoconf automake patch make libtool libXmu-devel - |
Is this the correct Makefile.in
# Copyright (c) 1994, 1995, 1996 # The Regents of the University of California. All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that: (1) source code distributions # retain the above copyright notice and this paragraph in its entirety, (2) # distributions including binary code include the above copyright notice and # this paragraph in its entirety in the documentation or other materials # provided with the distribution, and (3) all advertising materials mentioning # features or use of this software display the following acknowledgement: # ``This product includes software developed by the University of California, # Lawrence Berkeley Laboratory and its contributors.'' Neither the name of # the University nor the names of its contributors may be used to endorse # or promote products derived from this software without specific prior # written permission. # THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED # WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. # # @(#) $Header: 2002/10/09 15:34:11 # # Various configurable paths (remember to edit Makefile.in, not Makefile) # Code:
# Top level hierarchy |
I am using Ubuntu 12.04
should I install g++ g++-4.4 automake patch make libtool libxmu-dev xgraph |
No answers until you have edited posts #13 and #16.
Code tags ! Or delete the "Makefile.in´s". And no reason at all to show any Makefile.in´s. A Makefile.in is unique, can be specified as e.g. ns-2.35/Makefile.in Or : txsys-read-only/ubiquitous/ns2/Makefile.in If you edited a line in a Makefile.in : Show one line, with line number. - |
Code:
OBJ_GEN = \ |
please tell me what is
g++ g++-4.4 automake patch make libtool libxmu-dev xgraph I am new to ubuntu and ns2 |
Please read posts #15 and #18 ....
You will have to edit posts #13 and #16. Editing : That's the 'Edit' button. |
I have kept the code in posts 13 and 16 in code tags
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← ref. post #20.
Quote:
Or use the on-line "Ubuntu Search" : http://packages.ubuntu.com/precise/gcc The default Ubuntu 12.04 gcc is version 4.6.3 . The extra gcc/g++ packages for 1204 are : g++-4.4, g++-4.5 http://packages.ubuntu.com/precise/g++-4.4 ----------- HOWTO ns-2.35 + VBR : $ tar xvf ns-allinone-2.35_gcc482.tar.gz https://drive.google.com/file/d/0B7S...ew?usp=sharing $ cd ns-allinone-2.35/ $ patch -p0 < vbr_ns235.patch https://drive.google.com/file/d/0B7S...ew?usp=sharing $ ./install $ cd ns-2.35/ $ cp ns ns235-vbr $ sudo cp ns235-vbr /usr/local/bin/ You can copy the folder txsys-read-only/ubiquitous/ns2/vbr/ to any location. And run the .tcl examples in vbr/ : $ vbr-normal.tcl ,, etc. Visual : $ xgraph vbr-normal.out Nam : $ cd ns-allinone-2.35/nam-1.15/ && sudo make install The nam files will open OK, but no activity : $ nam vbr-normal.nam About the patch, vbr_ns235.patch : Is a text file, you can read the changes: ns-2.35/{ Makefile.in, common/package.h, tcl/lib/ns-default.tcl } ( And the added file tools/vbr_traffic.cc : No changes, just added.) - |
There is a VBR simulation example here ...
http://ns2homeworkforbeginner.blogspot.com/ Will open two xgraph windows, and a nam window with activity. Uploaded as example-VBR.tcl ... https://drive.google.com/file/d/0B7S...ew?usp=sharing |
Now I should install the below packages:
g++-4.4, automake, patch, make libtool, libxmu-dev, xgraph Is that true? I couldnot understand the below part.Please explain me clearly. HOWTO ns-2.35 + VBR : $ tar xvf ns-allinone-2.35_gcc482.tar.gz https://drive.google.com/file/d/0B7S...ew?usp=sharing $ cd ns-allinone-2.35/ $ patch -p0 < vbr_ns235.patch https://drive.google.com/file/d/0B7S...ew?usp=sharing $ ./install $ cd ns-2.35/ $ cp ns ns235-vbr $ sudo cp ns235-vbr /usr/local/bin/ You can copy the folder txsys-read-only/ubiquitous/ns2/vbr/ to any location. And run the .tcl examples in vbr/ : $ vbr-normal.tcl ,, etc. Visual : $ xgraph vbr-normal.out Nam : $ cd ns-allinone-2.35/nam-1.15/ && sudo make install The nam files will open OK, but no activity : $ nam vbr-normal.nam About the patch, vbr_ns235.patch : Is a text file, you can read the changes: ns-2.35/{ Makefile.in, common/package.h, tcl/lib/ns-default.tcl } ( And the added file tools/vbr_traffic.cc : No changes, just added.) |
Which architecture should I download: amd64 or i386
The https://launchpad.net/ubuntu/+archivemirrors is showing 373 mirrors. From which, I should download g++-4.4 package? Please tell me. |
← ref. #26.
Post #17 says : "I am using Ubuntu 12.04". Please show the reply from the command $ uname -a And please read post #15 : $ sudo apt-get install \ g++ g++-4.4 automake patch make libtool libxmu-dev xgraph ? Why haven't you done that ? ( No prerequisites installed → no building no ns2 ! ) Quote:
Some packages are available in the application 'Muon Software Center'. All ~38,000 packages will be visible in Synaptic → → $ sudo apt-get install synaptic ( When using ns-allinone-2.35_gcc482.tar.gz, g++-4.4 can be omitted.) ← post #25 : What is it you don't understand in post #23 ? ? ... You will have to do / try something yourself at some stage. Please download the two files ns-allinone-2.35_gcc482.tar.gz and vbr_ns235.patch. And unpack ns-allinone-2.35_gcc482.tar.gz in /home/<user-name>/ with : $ tar xvf ns-allinone-2.35_gcc482.tar.gz ... etc. etc. - |
2 Attachment(s)
I have installed synaptic and g++ g++-4.4 automake patch make libtool libxmu-dev xgraph
But i am getting this error(I have enclosed in the attachment) My version is (I have enclosed in the attachment) please help me |
← ref. #28.
! No black images, please. Not readable. Cannot be copied / quoted ! ? I guess you know how to copy/paste a text ? And you should now be able to use 'code tags'. Quote:
Read post #23 : There is a reason for "ns235-vbr". * All simulations can be done like $ ns235-vbr file.tcl » invalid command name "Application/Traffic/VBR « can also mean a failed build. If you did something different from post #23. ..... Then just start from scratch. You don't have to delete your current ns-allinone-2.35/ : You can have as many ns-allinone-2.xx as you want, installed at the same time. - |
I installed ns-allinone package successfully.
After that Ihave copied files from ns to ns235-vbr Code:
/Downloads/ns-allinone-2.35/diffusion3$ cp ns/diffagent.cc ns235-vbr Code:
sudo cp ns235-vbr /usr/local/bin/ Code:
[sudo] password for ubuntu: Please explain me |
i have got it correct. I have got the simulation sir.
Thak you very much for your help sir |
hi,
I installed vbr patch according to post #23. All changes seemed ok like : ns-2.35/{ Makefile.in, common/package.h, tcl/lib/ns-default.tcl } ( And the added file tools/vbr_traffic.cc : No changes, just added.) but, it shows the error munjure@munjure-ThinkCentre-M58p:~/test/running/cbr_vbr$ ns235-vbr test1.tcl ns: [code omitted because of length] : invalid command name "Application/Traffic/VBR" while executing "Application/Traffic/VBR set rate_ 448Kb " can u plz suggest? I have 2 others ns executable. |
Re post #32, @rimonece.
The usable VBR examples are, AFAIK : example-VBR.tcl, vbr-normal.tcl * I don't know what "test1.tcl" is ! Besides that, "invalid command name "Application/Traffic/VBR" " indicates a failed build. And "[code omitted because of length]" ... is usually when you add an unused protocol to ns-default.tcl. 'vbr-examples.tar.gz' https://drive.google.com/file/d/0B7S...ew?usp=sharing - |
vbr traffic in leach protocol
Hi Freinds,
I want to apply vbr traffic for 100 nodes in NS2.34. Please share with me the vbr_trafic.cc and vbr_trafic.h script (for 100 nodes) and the deployment procedure. Thank you very much for the help. |
Re #34, @haitam09.
The files {vbr_trafic.cc, vbr_trafic.h} are C++ source code, not scripts. The number of nodes are not decided in these files, but in simulations.tcl . Build example, please see post #23. - |
Re #34.
I scanned the 3000 simulations archive .... [000-All-examples-4]$ grep -in vbr * ... and found more examples with "vbr", some with many nodes. → → → vbr-examples-2.tar.gz https://drive.google.com/file/d/1C1k...ew?usp=sharing The "3000 simulations package" https://drive.google.com/file/d/1Qbe...ew?usp=sharing Tree https://drive.google.com/drive/folde...Ws?usp=sharing - |
Thanks Sir Knudfl for the help.
I already have leach protcol installed in NS2.34. I want to apply vbr traffic to my protocol especially in NS2.34 because you have already said in this forum that NS2.34 gives better results compared to NS2.35, is not it? leach uses the leach_test script, which also uses wireless.tcl. How can I integrate vbr_normal.tcl or vb-expo.tcl in this case? Is it necessary to upgrade to NS2.35 with mannasim? That's why I'm looking for sources code vbr_traffic.cc and vbr_traffic.h? Thanks in advances. Best regards. |
Re #37.
Leach works with ns-2.34 / Ubuntu 10.04 - i386, 32bits OS. Leach doesn't work with ns-2.35 : No usable simulation result. `vbr_traffic.cc´ : Setup an ns-allinone-2.35, and patch with VBR. If you read the text file/the patch, you will know that vbr_traffic.cc is in ns-2.35/tools/. There is also a copy here (so far) : https://drive.google.com/file/d/0B6a...lHc3cyUEU/edit ! There is no file `vbr_traffic.h´ ! Original link http://ns2blogger.blogspot.dk/2014_04_01_archive.html ... Please note the vbr links at the site ... → For vbr .cc file, Click here → For ns-default.tcl, Click here (When ns-2.34: Add changes to end of ns-default.tcl). Documentation : "VARIABLE BIT RATE [VBR]" → VBR__2014_04_01_archive.html.gz https://www.dropbox.com/s/nyye0s0gg8...e.html.gz?dl=0 Or : https://www.dropbox.com/s/xvnyu4x0vv...hive.html?dl=0 ... VBR is the fourth chapter at the above site: 1.OLSR, 2.NSG2, 3.Bonnmotion, 4.VBR. Documentation details : The patch, vbr_ns235.patch . Ns2-INFO https://drive.google.com/file/d/1FCj...ew?usp=sharing - |
Hi Sir Knudfl,
Thank you for the help. I installed vbr_traffic.cc in NS2.34/Ubuntu10.04 with leach protcol successfully. The vbr traffic by using example-CBR.tcl is tested. It's OK Please can you help me how to generate vbr (for 100 nodes) for this protocol? can I use ../ns-2.34/indep-utils/cmu-scen-gen$ ns cbrgen.tcl -type vbr -nn 100 -seed 1.0 -mc 20 -rate 4.0 or how to integrate VBR tcl script in this protocol? I did some research but I have not found answers. Thank you in advances. Best regards Quote:
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Re #39.
The one and only example using the "Application/Traffic/VBR" is vbr-normal.tcl . Maximum nodes, vbr-normal.tcl is 15 : set val(nn) 15. ... And that's still with traffic / communication for node 1, 2 only. - |
Traffic cbr in leach protocol under NS2
Hi ALL,
Please can someone give the optimal values of : rate, seed, i, mc(number of connections)to generate cbr traffic for 100 nodes specially for leach protocol by this command : $ns cbrgen.tcl -type cbr -nn 100 -seed 1.0 -mc 25 -rate 4.0 > cbr-traffic-100-25 This traffic is called in wireless.tcl by: set opt(cp) "/home/leach/ns-allinone-2.34/ns-2.34/tcl/mobility/scene/cbr-traffic-100-25" ./leach_test uses the parameters : topology_file="mit/uAMPS/sims/new100nodes.txt" #stop is the time to stop the simulation if it is still running stop=1000 # number of nodes in the scenario. num_clusters=5 # energy values. How much energy does each node have initially eq_energy=1 init_energy=2 # x,y is the size of the field x=100 y=100 # bs_x, bs_y is the location of the base station in the field. bs_x=75 bs_y=175 # Number of nodes. WARNING! This should be 1 higher then the number # of nodes generated in the scenario. nn=101 when I call this file when running ./leach_test, it returns as results: leach.err WITHOUT ERROR $cat leach.err mac/chanel.cc: INITIALIZE THE LIST xListHead SORTING LISTS ...DONE! leach.tr with size of 386 ko leach.out with size of 81 ko leach.alive, leach.energy, leach.data ====> EMPTY WITH 0 ko ?????? Is this normal? Else what's the solution? ============================================================== This script returns the following file extract : # # nodes: 100, max conn: 25, send rate: 0.25, seed: 1.0 # # # 1 connecting to 2 at time 2.5568388786897245 # set udp_(0) [new Agent/UDP] $ns_ attach-agent $node_(1) $udp_(0) set null_(0) [new Agent/Null] $ns_ attach-agent $node_(2) $null_(0) set cbr_(0) [new Application/Traffic/CBR] $cbr_(0) set packetSize_ 512 $cbr_(0) set interval_ 0.25 $cbr_(0) set random_ 1 $cbr_(0) set maxpkts_ 10000 $cbr_(0) attach-agent $udp_(0) $ns_ connect $udp_(0) $null_(0) $ns_ at 2.5568388786897245 "$cbr_(0) start" # # 4 connecting to 5 at time 56.333118917575632 # set udp_(1) [new Agent/UDP] $ns_ attach-agent $node_(4) $udp_(1) set null_(1) [new Agent/Null] $ns_ attach-agent $node_(5) $null_(1) set cbr_(1) [new Application/Traffic/CBR] $cbr_(1) set packetSize_ 512 $cbr_(1) set interval_ 0.25 $cbr_(1) set random_ 1 $cbr_(1) set maxpkts_ 10000 $cbr_(1) attach-agent $udp_(1) $ns_ connect $udp_(1) $null_(1) $ns_ at 56.333118917575632 "$cbr_(1) start" ... # 28 connecting to 29 at time 47.128346453946243 # set udp_(24) [new Agent/UDP] $ns_ attach-agent $node_(28) $udp_(24) set null_(24) [new Agent/Null] $ns_ attach-agent $node_(29) $null_(24) set cbr_(24) [new Application/Traffic/CBR] $cbr_(24) set packetSize_ 512 $cbr_(24) set interval_ 0.25 $cbr_(24) set random_ 1 $cbr_(24) set maxpkts_ 10000 $cbr_(24) attach-agent $udp_(24) $ns_ connect $udp_(24) $null_(24) $ns_ at 47.128346453946243 "$cbr_(24) start" # #Total sources/connections: 17/25 Thank you very much for your help. Best regards |
traffic cbr and RandomWalk for leach protocol
Hi knudfl,
I want to generate traffic cbr and simultaneously create the mobility of these nodes by bonmotion for leach protocol in NS2, the commands used are: 1) for traffic cbr $ ns cbrgen.tcl -type cbr -nn 100 -seed 1.0 -mc 10 -rate 4.0 > cbr-traffic-100 2) for mobility RW: sudo ./bm -f scen100RW RandomWalk -n 100 -d 1000 -i 3600 -t 10 -x 100 -y 100 -p 0 when I run ./leach_test, it returns as results: leach.err WITHOUT ERROR $cat leach.err mac/chanel.cc: INITIALIZE THE LIST xListHead SORTING LISTS ...DONE! The results give : leach.tr with size of 332 ko leach.out with size of 121 ko BUT, leach.alive, leach.energy, leach.data ====> with size 0 ko ?????? Is this normal? what's the solution? You will find attached theses files. Creating sensor nodes... - uAMPS.tcl 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 (100 == BS) - uAMPS.tcl Loading connection pattern...- wireless.tcl Loading scenario file... - wireless.tcl Node 0: (28.966110725405674,24.851641536155551) Node 1: (15.019677307000235,14.671639639265669) Node 2: (4.0031449422254903,89.491353877583208) Node 3: (82.035129322686757,86.27648697526962) Node 4: (22.729005209509751,64.713598445390161) Node 5: (53.275216162798564,71.05466628961949) ... .... #In end of leach.out, i have : ..... ..... 86 sending data {86 , 2.5523460159393112} to 74 at 2.5523460159393112 (dist = 4.7817933662924341) - ns-leach.tcl 46 sending data {46 , 2.5533700895928586} to 78 at 2.5533700895928586 (dist = 26.877857658542712) - ns-leach.tcl 1 rcvd ADV_CH from at 2.5568388786897245 - ns-leach.tcl ns: _o50 recv 0 0 512 : can't read "node_()": no such element in array while executing "nodeDist $node_($chID) $node_($nodeID)" (procedure "_o50" line 14) (Application/LEACH recvADV_CH line 14) invoked from within "$self recvADV_CH $msg" (procedure "_o50" line 16) (Application/LEACH recv line 16) invoked from within "_o50 recv 0 0 512 " num_nodes is set 101 mac/channel.cc: sendUp - Calc highestAntennaZ_ and distCST_ mac/channel.cc: highestAntennaZ_ = 1.5, distCST_ = 222.8 Thank you very much for the help. Best regards |
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