Brn.Sim

The Berlin RoofNet Simulator (Brn.Sim) is wireless mesh network simulator based on JiST/SWANS.

Brn.Sim Core

Physical Layers

IEEE 802.11abg Physical Layer

• Models for IEEE 802.11b (DSSS) and a/g (OFDM)
• BER Model from yans, ns-3
• Shadowing and Fading (both correlated/uncorrelated in time) from ns-2/SWAN/GloMoSim
  • TODO spatially correlated shadowing
• Propagation Delay Model
• Transmit Diversity Model
• Brn.Phy

IEEE 802.11abg Multi-Channel Support

Tbd.

IEEE 802.11abg Multi-Bit-Rate Support and Bit-Rate Selection

Tbd.

IEEE 802.11e

Tbd.

Brn.Click: Integration of the Click Modular Router API

Tbd.

Brn.Gui

The Brn.Gui is a user interface for the Brn.Sim simulator. It is able to control the simulation execution like a debugger. It visualizes simulation results which are specified in simulation code via the Brn.Measure framework. Furthermore, it is also a result browser for already completed simulations which were executed by the Brn.DistSim distributed simulation framework and stored in the Brn.Db storage.

The Brn.Gui is a stand-alone Eclipse RCP application. A Brn.Sim instance can be connected to the Brn.Gui via Java RMI. The out-of-process architecture (and the resulting RMI overhead) is mainly technical: the usage of custom classloader during simulation causes several problems which RMI solves through serialization.

Tbd.

Brn.Gui running a simulation with 500 nodes.

Brn.Gui displaying the Radio Packet Time-Bar.

Brn.Measure

Tbd.

Brn.Db and Brn.DistSim

DistSim is a framework for defining, executing and collecting the results of multiple similar simulations.

Tbd.

Scenario Creation via Brn.Builders

Tbd.

Do not forget to define Getter/Setter for each Member of the Parameter Class!

Wishlist

• Shadowing correlation according to Integration of physical phenomena into an experiment-based propagation model
• Integration of JTrana Trace Analyzer
• Energy contour plot with SGT
• Hierarchical Spatial for Shadowing/Fading (see SWANS++?)
• TCP from ns-3
• Antenna/Beamforming patterns [1]

Related Projects

• ns-2
• yans, ns-3
• JiST/SWANS
  • STRAW
  • SWANS++
  • DUCKS
• SWAN
• GloMoSim
• Open Simulation Architecture ([2])
• ...