The Data AirWaves Project

K. Stathatos, Nick Roussopoulos , and John Baras

Computer Science Department
University of Maryland
College Park


In this project we are integrating Direct Broadcast Satellite Systems (DBS) with Terrestrial networks to provide a hybrid and effective communication substrate lying between data resources and mobile user aplications. Smooth integration of these two media balances the need for rapid data dissemination to very large numbers of clients and on-demand interactive data services. We have developed algorithms which rapidly adapt the content of the broadcast based on the "misses" which result in explicit (on-demand) data requests.

The 1997 VLDB publication