[ns] access code of paper

2009-02-14 Thread vaishali mandhare

hello,
how can access code for paper?can anyone tell me?plz... 


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[ns] query:How to implement a call admission control algorithm for VoIP over 802.11 ad hoc networks by NS-2.33.

2009-02-14 Thread Changchun Xu


Dear all,   Now I'm considering call admission control algorithms for VoIP 
over IEEE 802.11 ad hoc networks. However, I have some questions as following:  
(1) The traffic model is 64kbps on-off stream for VoIP(i.e., G.711 PCM 
codec for VoIP) where the on and off periods are exponentially distributed with 
mean 1.5 seconds. Since the total bit rate is 64kbps and there is no packets 
generated during off period, therefore the bit rate during the on period is 
2*64kbps, thus the sampling rate is 16kHz, However, the bandwidth for voice 
signal is no more than 4kHz and the sampling rate 8kHz is enough. What is the 
matter?  (2) When a call from a station is rejected after the judgements 
using the CAC algorithm, the station can not admit itself into the network, How 
can I implement the rejecting operation in the ns-2.33 simulation environment? 
If the streaming packets are justly discarded, then the packet loss rate is 
high. My purpose is completely preventing the rejected station from joining the 
network.The above questions may be infant, thank you all very much in 
advance! Changchun,  
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[ns] NAM problem II

2009-02-14 Thread Jose Rodriguez

Hello everyone!

I wrote before about a problem that im having with NAM.

Looking up some of the info showed by ns-allinone-2.33 at the end of the
installion i found this

.
.
.
*make[2]: se sale del directorio
`/home/jose/Escritorio/ns-allinone-2.33/dei80211mr-1.1.4'
make[1]: se sale del directorio
`/home/jose/Escritorio/ns-allinone-2.33/dei80211mr-1.1.4'
Please compile your nam separately.

Ns-allinone package has been installed successfully.
Here are the installation places:
tcl8.4.18:/home/jose/Escritorio/ns-allinone-2.33/{bin,include,lib}
tk8.4.18:/home/jose/Escritorio/ns-allinone-2.33/{bin,include,lib}
.*
.
.

I have to compile NAM separately. Im following the instruction of the READ
ME file in /nam-1.13. I have type ./configure first but when i use this
command i get the following

.
.
.
*No explicit static compilation flag; setting V_STATIC to ""
checking for dlopen in -ldl... yes
checking for a BSD-compatible install... /usr/bin/install -c
configure: creating ./config.status
config.status: creating Makefile
config.status: creating autoconf.h
config.status: autoconf.h is unchanged**
.*
.
.

Does anyone knows what that means?? What should i do??

Thanxs again! I wish u all a happy valentines day!


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[ns] query: How to implement HRP in ns-2.33

2009-02-14 Thread laxmidevi madagundi

-- Forwarded message --
From: laxmidevi madagundi 
Date: Fri, Feb 13, 2009 at 8:54 AM
Subject: Help: Regarding HRP protocol details
To: ns-users@isi.edu


Hi everybody, Please send me design of HRP routing protocol for hybrid mesh
network. Bcause we are doing project on it.
And if possible send me tcl script to design topology.

Waiting for your reply

Thanking you
Laxmi
m.b.laxmid...@gmail.com


[ns] Re : NAM problem

2009-02-14 Thread Nadine Chen


Hi 
 
You should add thease lines to you bashrc file:
 gedit ~/.bashrc 
then add this:
# PATH
NS=your ns path
NAM=your NAM path
PATH=$PATH:$NS:$NAM
 
Hope this helps.
--- En date de : Dim 15.2.09, Jose Rodriguez  a écrit :

De: Jose Rodriguez 
Objet: [ns] NAM problem
À: ns-users@ISI.EDU
Date: Dimanche 15 Février 2009, 8h07

Hello everyone,

Im new on ns-2 and i have the following issue:

I downloaded ns-allione-2.33 and installed it (im using Ubuntu 8.04 by the
way). I did the changes to my PATH and LD_LIBRARY_PATH that at the end of
the installation process tells me to do. Im trying to run a simple scripy
and i get the following error

ns: finish: couldn't execute "nam": no such file or directory
while executing
"exec nam out.nam &"
(procedure "finish" line 5)
invoked from within
"finish"

I looked on this problem online and everyones says that it could be a PATH
issue. I included the location to nam-1.13 to my PATH but it didnt work. I
dont know if this part of the problem but in /ns-allinone-2.33/ns-2.33/nam
is empty. Also in /ns-allinone-2.33/nam-1.13 there isnt a nam directory,
just nam1, nam.h, etc but no an exec file. I dont think Nam was installed
correctly.

What should i Do..?? Can i install just nam or should i install everything
again...?? How do i install nam alone and then mixing it with what i
alredeay have???

Thanxs in advance! Hope eveyone has a great day!
-- 
A day without sunshine is like, you know...night.



  
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[ns] When does an adhoc wireless network "splits"?

2009-02-14 Thread Salvo Danilo Giuffrida

Hello, I have a scenario, with an adhoc network (DSR) where the
leftmost and the rightmost node communicate (I experimented both with
FTP and Exponential traffic). I need to calculate the time where the
network "splits", that is, these two nodes can't communicate anymore,
because one or more nodes in-between have reached an energy level of
0. Which kind of event should I look for? I wrote a Tcl script that
looks like either for the first "NRTE" event, or the first link error
report (flag "-Pw 1"), but sometimes, with certain seeds, one of these
(expecially the NRTE event) never appears. I made sure to setup the
simulation long enough (60 seconds, with initial energy level of all
nodes equal to 20 J), so that for sure the initial energy is not
enough for the network to survive.
Thanks a lot



[ns] NAM problem

2009-02-14 Thread Jose Rodriguez

Hello everyone,

Im new on ns-2 and i have the following issue:

I downloaded ns-allione-2.33 and installed it (im using Ubuntu 8.04 by the
way). I did the changes to my PATH and LD_LIBRARY_PATH that at the end of
the installation process tells me to do. Im trying to run a simple scripy
and i get the following error

ns: finish: couldn't execute "nam": no such file or directory
while executing
"exec nam out.nam &"
(procedure "finish" line 5)
invoked from within
"finish"

I looked on this problem online and everyones says that it could be a PATH
issue. I included the location to nam-1.13 to my PATH but it didnt work. I
dont know if this part of the problem but in /ns-allinone-2.33/ns-2.33/nam
is empty. Also in /ns-allinone-2.33/nam-1.13 there isnt a nam directory,
just nam1, nam.h, etc but no an exec file. I dont think Nam was installed
correctly.

What should i Do..?? Can i install just nam or should i install everything
again...?? How do i install nam alone and then mixing it with what i
alredeay have???

Thanxs in advance! Hope eveyone has a great day!
-- 
A day without sunshine is like, you know...night.