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Sending messages from one node to another is simple. You need to define gates in the nodes, connect them and then use send() to send messages around. In our last example, we had quite a lot of messages, bouncing here and there. The biggest difficulty in maste...

The event queue is very important in discrete event simulations, as we already discussed shortly in Discrete Event Simulation. Now we are ready to look into it more closely. When you start a simulation, the event queue is showing you the currently scheduled e...

The simulation kernel is the heart of OMNeT++ and any other discrete event simulator. It is the one that takes all of your messages, organizes them into the event queue (see last page) and calls them one by one when their time has come. It is very important t...

Usually, the simulation will end automatically once there are no more events in the queue. Remember, this is also the reason why we always need at least one message to be scheduled during initialize for at least one node, otherwise the simulator will not start...

This is the end of our tutorial. We hope you understood the basics of discrete event simulations and are able now to create your own nodes and to send messages around. We only scratched on the surface of what OMNeT++ can offer you. We highly recommend to turn...

Let us discuss one pressing problem: how to organise greener conferences. The main points we will discuss are the catering and the travel / hotel stays of the participants. Green catering for scientific events This is not an easy task. You need to cover all ...

Let's talk about something that’s been on my mind for a long time now: the sustainability of our academic travels. It’s a tricky topic because it mixes economic, social, and environmental factors. I will try to break down these elements and suggest ways we can...

Here is the flow chart of how a master project is organised at ComNets department, University of Bremen. Others departments might have other processes. Master theses are organised in the same way. The official registration of the thesis is conducted right a...

This is a public page for CIT/CMM University of Bremen students to help navigate the examinations system. It lists some common issues and requests and how to get fast results. Prerequisites Current examination chair: Prof. Dr. Anna Förster, vice-chair: Pro...