The open source vehicular network simulation framework.


Veins 4.6

This is the current version of Veins.

Download Veins 4.6

See below for the Changelog »

Development Version

If you want to closely follow the development of Veins, you might be interested in its public code repository.

Browse the "veins" branch at github or Subscribe to the RSS feed (stable, but unreleased code)

Browse the "master" branch at github or Subscribe to RSS feed (unstable, ongoing development)

Older and Other Versions


New in Veins 4.6

  • Rely on icons for visualization instead of manipulating Display String
  • Employ 802.1D user priority (UP) values for mapping frames to queues (AC)
  • Bugfix: Resolve internal collisions by queue AC
  • Bugfix: Allow setting per-vehicle-type Display String
  • Whitelist INET 3.6.0
  • Require OMNeT++ 5.1.1
  • Require SUMO 0.30.0

New in Veins 4.5

  • Add attenuation model capturing antenna patterns
  • Add a subproject "veins_inet" which allows using Veins as a mobility model in INET 3.4.0 (can be imported from subprojects/veins_inet)
  • Refactor MAC layer to be more modular
  • Rewrite sample application and upper layers
  • Add alternative TraCI client ( that launches SUMO process directly instead of relying on an external script (
  • Add simple mobility model using only initial position, speed, and acceleration (LinearMobility)
  • Add tracking vehicles' signals (e.g., turn signal indicators)
  • Fix contention window update in case of internal collisions
  • Fix channel idle detection on ideal channel
  • Change vehicle type mappings to use "0" as meaning "do not instantiate"
  • Require OMNeT++ 5.0
  • Require SUMO 0.29.0

New in Veins 4.4

  • Veins is now compatible with OMNeT++ 5 (as of the OMNeT++ 5.0 release candidate)
  • code has been polished to avoid common errors
  • scripts have been polished to keep fewer processes running
  • requires SUMO 0.25.0 (which now ships with netedit, the graphical road network editor)

New in Veins 4.3

  • The simple obstacle model now reads a full type-value mapping of attenuation values from an XML document (see the sample simulation for how to make efficient use of this option)
  • Veins can now be configured to use different module types/names/displaystrings for different vehicle classes (for example, "a=X b=Y *=" means to use value "X" for vehicle class "a", value "Y" for vehicle class "b", and not to instantiate any other class)
  • Veins now includes a very simple Nakagami-m fading model
  • can now simulate cars without network cards
  • requires SUMO 0.25.0 (which now ships with netedit, the graphical road network editor)

New in Veins 4 alpha 2

  • fix compilation on Windows
  • add option for custom WLAN-based MAC layers to force physical layer to transmit even on busy medium
  • bugfix CCA threshold changing
  • requires SUMO 0.22.0

New in Veins 4 alpha 1

  • the annotations feature of Veins has been included into OMNeT++ 4.5; Veins now uses this feature if a suitable version of OMNeT++ is detected, speeding up simulations containing annotations by an order of magnitude
  • allow changing the CCA threshold during simulations
  • include Nist frame error rate model to allow arbitrary PHY configurations
  • change TraCI API to follow a hierarchical structure (global commands, commands wrt. a single vehicle, commands wrt. a single lane, ...
  • move all source files from, e.g., src/modules to src/veins/modules; use only a single include search path (the root of the project) instead of adding every single directory to include paths. Together, this should make Veins much easier to link with other module frameworks. Similar efforts have been started for the INET Framework.
  • add TraCI commands to ease recording of screenshots and screencasts (from a series of screenshots, all taken at equal intervals wrt. simulation time).
  • requires SUMO 0.22.0

New in Veins 3.0

  • configurable NIC types for cars
  • improved clean-up of memory on shutdown
  • requires SUMO 0.21.0

New in Veins 3 alpha 3

  • add collision reporting: packet loss due (only) to interfering frames
  • pad simulated frame length to full symbols
  • fix TraCI error reporting

New in Veins 3 alpha 2

  • refactor of TraCI functionality into components
  • can keep number of vehicles in the simulation constant
  • requires SUMO 0.20.0
  • add RSU to demo code

New in Veins 3 alpha 1

  • first unstable preview release of Veins 3
  • fork MiXiM core as Veins proper
  • massive refactor to allow linking Veins and INET
  • add support for parking (set to "stopped" in SUMO) vehicles
  • requires SUMO 0.19.0

New in Veins 2.2

  • render annotations (e.g., communicating vehicles) in SUMO
  • update Veins example to show re-routing of cars around accident
  • add TraCI dissector for Wireshark
  • updates for SUMO 0.19.0

New in Veins 2.1

  • fix CCA sometimes failing for superposition of many low-power frames
  • updates for SUMO 0.17.0
  • updates for gcc 4.7.2

New in Veins 2.0

  • support longer running and larger scale simulations
  • improved support for batch runs
  • configurable antenna position
  • removal of deadlocked/livelocked vehicles in OMNeT++
  • new metrics: channel busy time
  • more pre-configured TraCI commands: traffic lights
  • allow switching between IEEE 1609.4 and pure IEEE 802.11p
  • support CLang and newer GCC
  • code cleanup and minor bug fixes

New in Veins 2.0-rc2

  • complete IEEE 802.11p and IEEE 1609.4 rewrite to improve stability and speed
  • more pre-configured TraCI commands: routes, junctions, polygons, and parking vehicles
  • code cleanup and minor bug fixes

New in Veins 2.0-rc1

  • MiXiM-only release
  • adaptation of MiXiM for full IEEE 802.11p and IEEE 1609.4 support
  • two ray interference attenuation model for freeway scenarios
  • code cleanup and minor bug fixes

New in Veins 1.99.2

  • Dual release for both MiXiM and the INET Framework 1.99.2
  • shadow fading model for buildings in urban and suburban scenarios
  • graphical annotations in OMNeT++ TKenv

New in Veins 0.2

  • update for INET Framework 2006-10-20
  • update for OMNeT++ 3.4b2

New in Veins 0.1

  • first public release
  • bidirectionally coupled road traffic and network traffic simulation

New in Veins

  • road traffic simulation coupled to network traffic simulation