Nexus is a federated system and needs therefore a communication
platform. In contrast to today's computer network applications
where terminals and servers are connected each to one fixed or
cellular network, future mobile applications need
either consequently or simultaneously access to networks of
different technology such as WLAN, GSM/GPRS, UMTS, or Bluetooth.
Being equipped with multiple network interfaces, mobile
terminals must not only support handovers between radio cells of
the same technology (horizontal handovers), they must also
support handovers to radio cells of different technology
(vertical handovers).
These requirements represent new challenges to the communication
platform in many ways. They will be solved by relying on existing
network and terminal technology.
To efficiently support future mobile applications, communication
middleware is required, which provides more functionality than
the Internet Protocol and the socket interface by abstracting from
underlying infrastructures so far as possible and providing
with powerful service primitives, which perform frequently
needed communication functions.
This project aims to
investigate an IP-based communication platform.
design a communication architecture for mobile applications
that is based-on the Augmented World Model enabling cost-effective use of
communication resources.
evaluate the performance of the Nexus system architecture.
perform further research of communication architectures of the mobile Internet.
Webmaster) | © University of Stuttgart | Imprint