Node coverage for different city population densities

This repository holds the code that is used to run the ns-3 simulations to generate the data and produce the density plots comparing several locations in canada.

This code was written for use with the ns-3.32 simulator and is designed to be run from within the scratch folder.

Generated the locations using the gen_coverage file using ns3 I chose to use ns3 so that the same position allocator that is used for the actual simulation is also used to produce these figures

population densities were multiplied by 25 to get the number of nodes in a 5km area.

after rounding the following values were used:

Minden : 172
Rigolet : 2110
University of Guelph : 37777
Toronto : 108360

nodes were assigned a set of random (x,y) coordinated from a uniform random distribution.

The seed and run values for the random number generator were set at '3' and '1' respectively for each of the 4 generations.

The x and y locations were extracted from the trace files for each node and was plotted with a python script with a 50m radius around it the 50m is to signify the wifi range.

Prereqs:

pip install matplotlib argparse

If building netanim:

qt4-qmake
libqt4-dev

(additionally, on ubuntu 20.10, you need to add an additional repo because qt4 no longer ships with it)

https://launchpad.net/~gezakovacs/+archive/ubuntu/ppa

Building this project

Reproducibility is one of the key goals of simulator studies.

Download and build copy of the ns-3.32 all-in-one distribution.

wget https://www.nsnam.org/release/ns-allinone-3.32.tar.bz2
tar xjvf ns-allinone-3.32.tar.bz2
cd ns-allinone-3.32
python3 ./build.py --enable-examples --enable-tests

Change directories to the scratch/ folder of the ns-3.32 source distribution.
```
cd ns-3.32/scratch/
```

Clone this repository.

git clone git@github.com:marshallasch/density-plots.git plots

Change directory back to the ns-3.32 folder of the source distribution and re-configure ./waf so it can cache the new changes
```
cd ..
./waf configure --enable-examples --enable-tests
./waf build
```
Run the example simulation that is included within the module.
```
./waf --run 'scratch/plots/plots'
```
This will generate an netanim xml file called <city>.xml This file will have multiple different entry types, for this plot we only care about the node locations.
extract the node locations

Filter the file to only include the node locations
```
$ grep -E "^<node.*/>$" city.xml > filtered.txt
```
The plot script expects a space separate list of node locations for a single time interval, so that each node only gets plotted once.
```
$ cat filtered.txt | cut -d '"' -f 6,8 | sed -E 's/"/ /'  > coordinates.txt
```
run ./genPlots.py --city Minden --range 50 --density 6.9 coordinates.txt to generate the plot that shows a 5km x 5km area and the coverage from the number of devices from the population density.

MarshallAsch/density-plots

Node coverage for different city population densities

Prereqs:

Building this project