Routing in VANETs using ns3

Part 1
WAVE - Wireless Access for Vehicular environments. vanet-routing-compare.cc It might take more than an hour. The readers are requested to be patient. SUMO, VANETs, routing comparison 1. Explain the full source code (1550 lines of code) 2. Creating a real scenario using osm (Open Street Map Web Wizard) 3. Performance analysis for various vanet protocols. https://www.nsnam.com Location of the source code /home/pradeepkumar/ns-allinone-3.27/ns-3.27/src/wave/examples

Move this file to the scratch/ for inclusion of all modules. Step 1: Explanation of source code. Copy the file to scratch folder. This is just Part 1 of the VANET comparison

Part 2

Please watch the First Part before watching this video  

https://www.youtube.com/watch?v=IJYeIpUqjQI&t=850s

Part 2 - Analysis of the results.

Please go through the first video (Part 1) and then watch this video (PArt 2)

#VANETs #NS3 #Routing

1. SUMO for web traffic (osmWebWizard.py)

2. Convert this into mobility.tcl file and that can be loaded to vanet-routing-compare.cc file (as discussed in part1)

3. We will be analysing various metrics like 

Receive Rate

Packets Received

Mac PHY overhead

Packetloss

Throughput and other metrics.

Files that are generated

mobility.tcl (for generating traffic in the network)

.tr (Ascii Trace, throughput and goodput)

.flowmon (FlowMonitor)

.xml (for NetAnim)

.pcap (Wireshark)

Step 1 - SUMO

$] export SUMO_HOME=/home/pradeepkumar/sumo/

$] cd sumo/tools

$] python osmWebWizard.py

Once the data generated

$] sumo -c osm.sumocfg --fcd-output trace.xml

sumo has a traceExporter.py file, this file has to be processed.

$]  python traceExporter.py -i 2019-08-18-20-47-08/trace.xml --ns2mobility-output=/home/pradeepkumar/mobility.tcl

from the mobility.tcl file,there are 

32 nodes (vehicles) and 249 seconds

Step 2:

NS3 part

Copy the file vanet-routing-compare.cc file to the scratch folder. 

$] cp ns-allinone-3.27/ns-3.27/src/wave/examples/vanet-routing-compare.cc ns-allinone-3.27/ns-3.27/scratch/

Do the modifications in line numbe 2392 as indicated in the video

My simulation will be running for various protocols like OLSR, AODV and DSDV

Scenario 2 is used for Selaiyur, Tambaram, Chennai, India

Total time is 30 seconds 

Vehicle movement is 20m/s

$] ./waf --run "scratch/vanet-routing-compare --protocol=1 --scenario=2"

1 - OLSR 

2- AODV

3- DSDV

4. DSR

To process the results, we used gnuplot and LibreOFfice Spreadsheet

Gnuplot Code.

set terminal pdf

set output "RR.pdf"

set title "Receive Rate"

set xlabel "Simulation Time (Seconds)"

set ylabel "Receive Rate"

plot "AODV.csv" using 1:2 with linespoints title "AODV", "OLSR.csv" using 1:2 with linespoints title "OLSR","DSDV.csv" using 1:2 with linespoints title "DSDV","DSR.csv" using 1:2 with linespoints title "DSR" 

set terminal pdf

set output "PR.pdf"

set title "Packets Receives"

set xlabel "Simulation Time (Seconds)"

set ylabel "PAckets Received"

plot "AODV.csv" using 1:3 with linespoints title "AODV", "OLSR.csv" using 1:3 with linespoints title "OLSR","DSDV.csv" using 1:3 with linespoints title "DSDV","DSR.csv" using 1:3 with linespoints title "DSR" 

set terminal pdf

set output "macphy.pdf"

set title "Mac Phy OVerhead"

set xlabel "Simulation Time (Seconds)"

set ylabel "Overhead"

plot "AODV.csv" using 1:22 with linespoints title "AODV", "OLSR.csv" using 1:22 with linespoints title "OLSR","DSDV.csv" using 1:22 with linespoints title "DSDV","DSR.csv" using 1:22 with linespoints title "DSR" 

WE have done the basic simulations.. and plotting of characteristics. 

Similar way , we can do it for other results also.

In the next video, I will be showcasing how to use flowmonitor for plotting the various losses, bitrates in the system or network.

python scripts to read the flowmonitors.

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Thank you....

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