Dataman Project-Information Services for Low-Powered Wireless Mobile Clients.

摘要

The goal of the research effort in the DataMan Project is the development of novel wireless information services, location-dependent protocols such as geographic routing, and low energy protocols for wireless networks and devices. In each of the areas we have made progress and several results to report. First, the problem of efficient energy management and bandwidth utilization has been addressed using the concept of Meta-Channel designed for dissemination of information to wireless mobile users. Several protocols for low energy dissemination have been designed and demonstrated. Location dependent messaging has been made possible by the concept of Geographic Routing which has been designed and deployed to enable routing of messages to specific geographic areas for conveying location-dependent information. A complete user guide for geographic routing has been prepared. Finally, mechanisms for environment aware adaption in applications and protocols have been completed. Since, mobile users encounter widely varying network characteristics, there is a need for dynamic adaptation. To this end, we have designed a new family of environment-aware protocols.