NS2 implementation of common delay tolerant network (DTN) routing schemes, including Direct Transmission, Source Spray and Wait, and Core-assisted Routing. Also generates data for gathering mobility characteristics such as nodal inter-contact times and contact times. Includes preliminary implementation for multicast operations. More...

This implementation is based on Version 2.32 of the Network Simulator. There are other files to be modified in the ns2/ directory of NS source tree. For a diff file for the ns2/ directory, please refer to this patch file.
For a low-level TCL script to run NS2 experiments refer to this TCL script. A sample run might look like this:

$ ns sdtnmc.tcl "options here ..." &> /tmp/log

A program to analyze the log file is given here. A sample run might look like this:

$ analyzer /tmp/log &> /tmp/analysis.txt

NS2 comes with its own Random Waypoint (RWP) mobility scenario generator. Node movements are supposed to i.i.d.. We introduce two-level mobility patterns so that a specific number of nodes designated as core-nodes can have a different speed distribution than the rest of the nodes. Besides, as only the movement information is generated without connectivity information, our mobility scenario generator is also much faster.More...

A sample run might look like this:

$ rwpmobgen -n 40 -p 40 -m 1.0 -M 5.0 -t 175000 -x 3000 -y 3000 -c 3 -z 5.0 -Z 10.0

Here, mobility scenario will be generated for 40 nodes, where there will be 3 core nodes traveling in the uniform speed range of [3.0,10.0] (m/s). The rest of the nodes will travel at a speed uniformly chosen from [1.0,5.0] (m/s). Scenario duration is 175,000 seconds and the system area is 3000mx3000m. Pause time is 40s.

NS2 comes with its own Random Waypoint (RWP) mobility scenario generator. Node movements are supposed to i.i.d.. We introduce two-level mobility patterns so that a specific number of nodes designated as core-nodes can have a different speed distribution than the rest of the nodes. Besides, as only the movement information is generated without connectivity information, our mobility scenario generator is also much faster.More...

A sample run might look like this:

$ rdmobgen -n 40 -p 40 -m 1.0 -M 5.0 -t 175000 -x 3000 -y 3000

Here, mobility scenario will be generated for 40 nodes traveling in the uniform speed range of [3.0,10.0] (m/s). Scenario duration is 175,000 seconds and the system area is 3000mx3000m. Pause time is 40s.

It is not straightforward to run experiments specifically on mobility model characteristics on NS2. This program is written for detailed experimentation regarding inter-contact times, relative speed of nodes, epoch duration, speed distribution, and relative movement angle distribution of mobile nodes.More...

A sample run might look like:

$ ./rwp

Look at the log files under ./log directory for detailed data.