network-programmingns2ns-3

How to simulate audio and video calls in NS3?

I want to generate different types of traffic for analyzing OFDMA transmission in NS3. How can I simulate video and audio calls?

Solution

  • The first three options that come to mind are:

    1. If you want to be as close to reality as possible, try out the Direct Code Execution (DCE) Module. I've never used it, so I'm not sure how well it's supported.
    2. Use the OnOffApplication. The OnOffApplication allows you to set onTime, offTime, and a DataRate (among other variables). You can determine the rate at which data is sent for your audio or video program, and then provide those rates to the OnOffApplication. You may find the OnOffHelper convenient to set various parameters of an OnOffApplication.
    3. Create your own Application. This option may be of particular interest since you could simulate variable bitrate audio/video calls. If you choose this option, I highly suggest you checkout the ns-3 tutorial for the walkthrough of fifth.cc to learn more about how to create your own Application.

    The second option is probably easiest to use, but may not be as accurate as the first, or as flexible as the third.