Current Projects
- Diversity Improvements in
Ultra-Wide Band Communications
- Abstract: Ultra-wide
band communication
has been heralded as a new technology that will provide cheap wireless
data
systems with very large capacity as an overlay for the existing
narrow-band
systems. Before this technology can be fully utilised in practical
applications, several theoretical and technical challenges need to be
resolved.
These include controlling of interference among different users,
improvement in
transmission quality, and development of simple but high performance
decoding
algorithms. The proposed project will use the expertise of the research
team in
the areas of space-time coding and sequence design to address those
issues, and
to facilitate the ultra-wide band technology in unleashing its full
potential.
- Funding: ARC
Discovery Project
- Project Duration: 2005
- 2007
- Project Staff:
-
Smart Antennas for Broadband Wireless Data Systems
- Abstract: Smart antennas can
facilitate accommodation
of an increasing demand for bandwidth and quality in wireless
communications
by directing the antenna beam towards the desired user, while
suppressing
signals coming from interferers. The beam forming processor can adapt
to
changes in channel propagation conditions as well as movements of the
user
or interferers. Many algorithms for controlling smart antennas
have
been proposed, and usually there is a trade-off between complexity and
performance.
We aim to find a suitable compromise to implement smart antennas for
broadband
wireless access systems and to apply smart antenna technology to
increase
the range of ultra-wideband communications.
- Funding: ARC
Linkage - with Argus Technologies
- Project Duration: 2004
- 2007
- Project Staff:
-
Space-Time Block Codes using Orthogonal, Amicable and General
designs
- Abstract: Space-time coding for multiple
transmit and multiple receive antennas is the enabling technology for
the future
wireless communication systems. Multiple antennas provide independent
transmission paths resulting in an increased channel capacity without
requiring costly additional bandwith. Space-time block codes lead to
the simplest receiver structures and thus the most economical
solutions. The currently known codes are based on the work of the CIs,
but so far only a small part of the Work has been utilised. We aim to
fully exploit the potential of this theory
and move the performance of wireless systems towards their theoretical
limits.
- Funding: ARC
Discorvery-Project
- Project Duration: 2003
- 2005
- Project Staff:
- Microwave Antenna Testing Facility for Far-Field and
Spherical Near-Field Measurements
- Abstract: The proposed facility is for
testing broad-beam microwave antennas (1 GHz / 18 GHz), designed and
developed
by collaborators for several research and commercial projects. These
antennas are important in telecommunications, defence and biomedical
applications. While facilitating timely pattern measurements of antenna
prototypes, it
will open new opportunities in antenna experimentation. This facility
will
enhance collaborators' highly acclaimed theoretical research by
providing experimental results for theory validation. Near-field
patterns available
from the facility will advance our knowledge on complicated antennas.
This
will generate researchers skilled in state-of-the art antenna
measurements, and will help develop competitive Australian industries
in this frontier technology.
- Funding:
ARC Linkage Infrastructure
- Project Duration:
Funding in 2004 - ongoing activity
- Project Staff:
- A/Prof KP Esselle
- Dr AM Sanagavarapu
- Dr K Ghorbani
- A/Prof TA Wysocki
- Dr TS Bird
- Dr BB Jones
- Dr AR Weily
- A/Prof JE Mazierska
- Modelling Virtual Transport Channel for Future
Multimedia Heterogeneous Networks
- Recent advances in network bandwidth and processing power
have led to the emergence of real time multimedia streaming
applications and it is expected that such applications will become an
even more dominant source of traffic in future computer networks.
Quality of service studies for real-time applications in high-speed
networks,
point to the importance of the transport layer
functionality in admission control, monitoring
end-to-end delays, and network bandwidth adaptability.
The project will study, design, develop and
analyse a comprehensive model for the virtual
transport layer to satisfy the necessary quality
of service requirements for the next generation
of multimedia-based applications.
- Funding:
ARC Linkage
International
- Project Duration:
2004 - 2005
- Project Staff:
-
Base Station Antennas for Broadband Wireless Access Systems
- Abstract: Broadband wireless access is
expected to be the technology providing a mass high bandwidth access to
the Internet. It will operate in several frequency bands between 10 and
40 GHz. One of the areas that require a significant research before
high performance base station equipment can be successfully deployed
and the potential of access systems fully utilised is design of
switched beam antenna systems. The
proposed project will provide a feasibility study assessing the
available
antenna system designs from the viewpoint of their usefulness in
broadband
wireless access systems, the complexity and cost of development. We
expect
to unravel through this feasibility study further research questions
that
will ultimately lead to the development of a family of
base
station antenna systems commercialised together with Argus Technologies.
- Funding: URC
Partnership Grant
- Project Duration: December
2002 - June 2004
- Project Staff:
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