User Model Linux for Wireless Network Emulation

USENIX'05 has an emulation track of 3 papers, one of which, "Running virtualized native drivers in User Mode Linux", proposes a method of using User Mode Linux along with virtual wireless network interfaces for wireless network emulation. It uses the Hostap driver in the guest OS to communicate the virtual wireless interface via TCP. While the system can be used to test ad hoc routing or other protocols, it may be only useful when the wireless network (wireless LAN, for example) is small. Good thing is, there is no need to modify the protocol implementation because it is executed in a guest OS.