Wired wireless broadcast emulation

A wired testbed's usefulness for wireless research hinges on its ability to faithfully reproduce the wireless medium. One of the key properties of a wireless medium is its broadcast nature. Wireless broadcast behavior is used in applications such as cell phone and satellite networks to disseminate the same data to multiple users as well as perform time synchronization. In this paper, we investigate two methods that can be used to ascertain if a given wireless emulator is modeling the broadcast property correctly. Our results indicate that the better of the two proposed methods offers micro-second precision.