We present an efficient distributed data structure, called the D-SPANNER, for maintaining proximity information among communicating mobile nodes. The D-SPANNER is a kinetic sparse...
FreeWalk is a desktop meeting environment to support informal communication. FreeWalk provides a 3-D community common where everybody can meet and can behave just as they do in re...
We present an approach for the localization of passive nodes in a communication network using ambient radio or sound signals. In our settings the communication nodes have unknown p...
Thomas Janson, Christian Schindelhauer, Johannes W...
Abstract: A triangulated network of mobile units is modelled by means of a graph transformation system in which graph nodes are labelled with geometric coordinates and edges are la...
— The coexistence and interworking of IEEE 802.16 and IEEE 802.11 is an acute problem. The frame-based medium access of 802.16 requires rigorous protection against interference f...
Lars Berlemann, Christian Hoymann, Guido R. Hiertz...