 |
|
 |
SFB 627: Nexus |
|
Project A1:
Context-Aware Communication Control |
 |
|
|
|
|
|
|
|
|
Prof. Dr.-Ing. Dr. h.c. mult. Paul J. Kühn
University of Stuttgart
Institute of Communication Networks and Computer Engineering
Pfaffenwaldring 47
D 70569 Stuttgart
Tel. +49 (0)711 685-8027
Fax +49 (0)711 685-7983
mail@ikr.uni-stuttgart.de
Overview
Complex context-aware applications impose stringent
requirements on the communication infrastructure with
respect to bandwidth and Quality of Service. There is a
latent time- and location-variant discrepancy between
these requirements and the capabilities of heterogeneous
mobile communication networks. Applications such as the
visualization of spatial-world model information on
mobile handsets must be adaptive in order to compensate
for these differences. Consequently, a comprehensive
control of adaptation mechanisms spanning different
protocol layers and application instances is
required. Therefore, one focus of this sub-project is to
develop supporting methods for adaptive Nexus
applications. This includes approaches for network-based
mediation of spatial-world model data and approaches for
adaptive communication patterns. The evaluation of the
interaction with Nexus applications is realized in
collaboration with other sub-projects working on Nexus
applications.
The second focus of the sub-project is a cross-layer and
cross-application adaptation control and
orchestration. Adaptation decisions can be significantly
improved using high-quality context information that is
available in world models. In addition to cell coverage
areas stored in the Nexus world model, context
information related to individual users is of particular
interest, since this allows to predict future network
connectivity and user needs. An example for such context
information is the location of users in combination with
movement prediction, which is obtained from navigation
components in the Nexus world model. Moreover, past
usage scenarios, information about current activities
and (price) preferences can be considered, too. To
process such context information, the sub-project
applies methods developed by other projects within the
center of excellence (diffuse information, detection of
situations, etc.).
Institute
People
|
|
|
|
|
|
