— This work presents an UWB testbed for reduced data rates with capabilities of measuring range and location. The transmitter uses Time Hopping spread spectrum codes to reduce th...
We propose a sensor positioning scheme for a wireless sensor network consisting of beacons as well as collaborative anchors (CA) to help sensors within a prescribed service area t...
We evaluate two techniques to implement concurrent events in a group communication service. This evaluation is based on a comparison of the performance measured from two different...
Vehicular communication systems are an emerging form of communication that enables new ways of cooperation among vehicles, traffic operators, and service providers. However, many ...
We consider the problem of location management of mobile users. The objective is to keep track of the mobile users in order to deliver calls. The IS-41 is a simple strategy for loc...