OMNeT++ is an extensible, modular, component-based C++ simulation library and framework, primarily for building network simulators.
PicoRadio project at Berkeley
The PicoRadio project at Berkeley is aiming at developing "meso-scale low cost (< 50 cents) transceivers for ubiquitous wireless data acquisition that minimizes power/energy dissipation.". The NAMP subgroup are using OMNeT++ to model parts of the system. They have built an IEEE802.11 model, etc. http://bwrc.eecs.berkeley.edu/Research/Pico_Radio/
Remote OMNeT++ developed by Márk Erdei, Ambrus Wagner, Katalin Sója and Márk Székely at the Technical University of Budapest. The framework supports managing remote simulation runs on a cluster of workstations. A Remote OMNeT++ system consists of simulation execution hosts (workhorses) and data warehouse hosts (for storing model files and simulation results) accessed via Remote OMNeT++ clients. The idea is similar to that of grid computing. The implementation uses Java, Swing and RMI. Home page: http://octopus.hit.bme.hu/remopp/
IP Micromobility Suite
IP micromobility suite at Mobile Computing Laboratory, Budapest University of Technology and Economics. Source code is available from the site. The models are used in both research and teaching. Home page: http://www.mcl.hu/~brozsas
Border Pricing Protocol
Border Pricing Protocol model of Vincent Oberle. BPP is a proposed protocol for the spreading of price information over the Internet. http://www.oberle.org/bpp.html