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Bjorn Landfeldt, PhD, SMIEEE,
MIEICE
Senior Lecturer of Internet Technologies at the University of Australia in the Advanced
Networks Research Group To find out more about me, follow the
relevant links to the right.
Contact Details: Phone: +61 2 9351 8962
Device
Auto-configuration Avoiding interference and maximising capacity in collaborative access networks In this project we investigate ways of overcoming the problems asociated with wireless access points overlapping in coverage and contending for resources in densly deplyed areas. It has been shown that the performance of WLAN (802.11) suffers greatly when there are many acess points contending for resources. We are working on alleviating this problem using collaborative algorithmic techniques. PhD student - Suparerk Manitpornsut.Mobility Management in unstructured wireless networks Traditional wireless networks can be viewed as hierarchical constructs and it is easy to determine the apropriate locations of mobility anchorpoints and gateways in such neteorks. In unplanned and unstructured networks however, this does not hold true. Such networks (e.g. wireless mesh networks) have unstructured connectivity graphs which makes the optimum location of anchorpoints difficult to determine. PhD student working on topic - Paul Wu. Effects of inaccuracy of location estimation on DSRC based services DSRC based vehicular services include road safety applications such as collision avoidance. These application rely on accurate sensor data input in order to function well. In this project we are investigate achieveable accuracy of sensed data trough sensor fusion and data filtering and determine the flow on effects on application peformance. PhD student - Quincy Tse Old projects A
function based communication stack This
project looks at decoupling individual functions in the communication
stack
instead of bundling them into static protocols. The major advantage is
that
using only the components necessary to support a given service, the
stack
implementation can be optimised. This is
useful for
saving complexity and power usage in sensor nodes etc. PhD
student – Kaushalya Premadasa.
Power
aware routing for sensor networks This
project aims at developing methods for maximising network lifespan by
equalising power in routing nodes. If critical nodes fall off the
network,
entire sub trees can become unavailable. Therefore, equalisation will
maximise
network lifespan rather than individual node lifespan. PhD student – Khaled Matrouk
Presence
and notifications in infrastructure-less environments This project
aims at providing presence, location and notification services in
networks
where known addresses for servers etc. are unavailable. Networks such
as ad-hoc
networks inherently have the problem that resources are at best
difficult to
locate so that traditional server based approaches fail. PhD
student – Anthony Dang.
Optimised
Location Management This
project aims at minimising the cost associated with maintaining
knowledge about
mobile hosts in cellular networks (or extrapolations thereof).
Currently, there
has been a
strong focus on dynamically determining optimal location areas/paging
areas to
improve on the pretty inefficient static model current cellular
networks use.
In this work we take this work further by optimising the cost on an
individual
basis rather than the network aggregate for all hosts. Honours Student
– James
Cowling
An
optimized PCF
for QoS in IEEE 802.11 In this project we
are investigating different methods of improving the QoS
provisioning in IEEE 802.11. We are trying to maximise
the number of supported terminals with QoS
sensitive
traffic while improving the service differentiation. PhD
student – Apichan Kanjanavapastit.
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Current research students PhD Mohsin Iftikhar Quincy Tse Rezwan Khan
Dan Cutting (PhD 2008) Khaled Matrouk (PhD 2008) Kaushalya Premadasa (PhD 2007)
Sanchai Rattananon (PhD 2005) James Cowling (University Medalist, won the Soprano Prize for best Thesis in 2004, Fullbright Scholar, Allan Bromley prize for best honours thesis in University of Sydney and the University of Sydney medal of Convocation) Florian Vehrein (University Medalist, the best EIE thesis 2004, Co-supervised with Dr. Sanjay Chawla)
Ezequiel Muns (Hons 1)
David Helstroom (Hons 1) now with Google Mountainview
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