It's quite a broad question. Use tutorials for MANET networks. MANETs and VANETs are almost the same things. You can find lots of tutorials in google. Here is one link below.

http://www.slideshare.net/giancarloromeo/atts-keynote

thanks for the link, but in fact I whould like to simulate VANET. I couldn't find useful documents or tutorials on the NET. thanks

You can ask questions on ns2 forums. If you don't know, how to simuate VANET in NS2, you can write the model in c++ from scratch. It will take you probably a month.

I have done similar thing for low earth orbit satellite network. First, I tried to use NS2, but haven't understood how to use it. So i wrote everything from scratch.

I dont think it's an easy job to write this stuff in NS-2.

You need to a real expert in C ++ to understand whats happening in NS-2 / NS-3

I agree with Sachin Kumar.

If you follow this link, you will find ns-2 simulations with already defined realistic mobility patterns. They use OLSR routing protocl.

http://neo.lcc.uma.es/staff/jamal/vanet/?q=content/download-simulations

Conference Paper Accuracy and Efficiency in Simulating VANETs

Many thanks Mr.Toutouh, it seems a very good link, I have try to simulate VANET with you code and I am still reading the instruction in the readme file, thanks, I wish I can simulate VANET correctly, until now I am not sure of the appropiete  Routing protocol to use for VANET simulation, if you have more information about VANET simulation I will be appriciate,thanks once again

Mr Toutouh, please I have try to apply the mobility  as you describe in you files and I have this erreor when typing this line: ns urban-VANET-example.tcl 0.1 mobmod-urban-malaga-S15.tcl flowmod-urban-malaga-S15.tcl

I get this error

Error: Number of arguments has to be 4

Execute this script following the next structure:

ns urban-VANET-example.tcl

can't read "opt(nn)": no such element in array

while executing

"create-god $opt(nn)"

(file "urban-VANET-example.tcl" line 150)

thanks for reading my message

now I modify the instruction to   ns urban-VANET-example.tcl 15 0.1 mobmod-urban-malaga-S15.tcl flowmod-urban-malaga-S15.tcl   and I have pass this error but I have another 

num_nodes is set 15

(_o14 cmd line 1)

invoked from within

"_o14 cmd addr"

invoked from within

"catch "$self cmd $args" ret"

invoked from within

"if [catch "$self cmd $args" ret] {

set cls [$self info class]

global errorInfo

set savedInfo $errorInfo

error "error when calling class $cls: $args" $..."

(procedure "_o14" line 2)

(SplitObject unknown line 2)

invoked from within

"_o14 addr"

("eval" body line 1)

invoked from within

"eval $node addr $args"

("default" arm line 2)

invoked from within

"switch -exact $routingAgent_ {

DSDV {

set ragent [$self create-dsdv-agent $node]

}

DSR {

$self at 0.0 "$node start-dsr"

}

AODV {

set ragent [$self cre..."

(procedure "_o3" line 14)

(Simulator create-wireless-node line 14)

invoked from within

"_o3 create-wireless-node"

("eval" body line 1)

invoked from within

"eval $self create-wireless-node $args"

(procedure "_o3" line 23)

(Simulator node line 23)

invoked from within

"$ns_ node"

("for" body line 2)

invoked from within

"for {set i 0} {$i < $opt(nn)} {incr i} {

set node_($i) [$ns_ node]

$node_($i) random-motion 0 ;# disable random motion

$ns_ initial_node_pos $node_..."

(file "urban-VANET-example.tcl" line 143)

djanahana@ubuntu:~/Desktop/urban-VANET-scenario-U1/urban-VANET-scenario-U1$ ns urban-VANET-example.tcl 15 10 mobmod-urban-malaga-S15.tcl flowmod-urban-malaga-S15.tcl

num_nodes is set 15

(_o14 cmd line 1)

invoked from within

"_o14 cmd addr"

invoked from within

"catch "$self cmd $args" ret"

invoked from within

"if [catch "$self cmd $args" ret] {

set cls [$self info class]

global errorInfo

set savedInfo $errorInfo

error "error when calling class $cls: $args" $..."

(procedure "_o14" line 2)

(SplitObject unknown line 2)

invoked from within

"_o14 addr"

("eval" body line 1)

invoked from within

"eval $node addr $args"

("default" arm line 2)

invoked from within

"switch -exact $routingAgent_ {

DSDV {

set ragent [$self create-dsdv-agent $node]

}

DSR {

$self at 0.0 "$node start-dsr"

}

AODV {

set ragent [$self cre..."

(procedure "_o3" line 14)

(Simulator create-wireless-node line 14)

invoked from within

"_o3 create-wireless-node"

("eval" body line 1)

invoked from within

"eval $self create-wireless-node $args"

(procedure "_o3" line 23)

(Simulator node line 23)

invoked from within

"$ns_ node"

("for" body line 2)

invoked from within

"for {set i 0} {$i < $opt(nn)} {incr i} {

set node_($i) [$ns_ node]

$node_($i) random-motion 0 ;# disable random motion

$ns_ initial_node_pos $node_..."

(file "urban-VANET-example.tcl" line 143)

thanks

Download source code of OLSR protocol in NS2, all right reserved by Wireless Sensor Networks Laboratory of Iran. Zip and PDF

http://wsnlab.org/downloads/

you must use of NS2.34 and Sumo and Move simulator. 

Hi,

Mr.Homaei ,the link of the zip file of all references doesn't work.it seems there is some issues for downloading the references.please update the link.

Hi Miss Mohammadi, Did you check it again?

Hi,  I want to design gateway selection algorithm in VANET , do u have any idea or source codes to start with. 

thank you.

hi, i am working on broadcasting in vanet, for that i attached vanetrbc protocol in ns2,35, but i think it doesnt work correctly , does any have an ubunto file including ns2 with vanetrbc protocol and sumo that work correctly?

This exact VANET Broadcasting project is available with documentation (pdf) and source code at https://tetcos.com/file-exchange.html

The mobility file format for NetSim is quite simple. It is as shown below.

A sample mobility.txt file for a MANET network containing 2 nodes is shown below

#

#nodes: 2 max x = 500.0, max y: 500.0

#

$node_(0) set X_ 70.0

$node_(0) set Y_ 70.0

$node_(0) set Z_ 0.0

$node_(1) set X_ 150.0

$node_(1) set Y_ 150.0

$node_(1) set Z_ 0.0

$time 0.0 "$node_(0) 70.00 70.00 0.00"

$time 0.0 "$node_(1) 150.0 150.0 0.0"

$time 5.0 "$node_(0) 100.00 70.00 0.00"

$time 5.0 "$node_(1) 150.0 160.0 0.0"

$time 10.0 "$node_(0) 130.00 70.00 0.00"

$time 10.0 "$node_(1) 150.0 170.0 0.0"

What difficulty are you facing?