September 9, 2005
HPWREN establishes research relationships with UCSD CSE/ECE faculty and
graduate students
In support of managing resources in heterogeneous wireless sensor
networks, HPWREN has teamed up with the UCSD Computer Science and
Engineering (CSE) and Electrical and Computer Engineering (ECE)
departments to create a joint research activity.
The goal of this collaboration is to design scheduling and routing
algorithms capable of supporting Quality of Service (QoS) requirements
for users of HPWREN. HPWREN today supports a large assortment of
sensor and other user applications with varying resource needs,
such as large but transient bandwidth requirements of the Palomar
Observatory, low continuous bandwidth with tight real-time traffic
deadlines of seismic sensor nodes, and long battery lifetime essential
to small and remotely deployed weather stations, as well as other
sensors. Some of the applications have stringent QoS requirements.
Good examples are real-time seismic data or timely information to
the emergency response personnel on spread of a large wildland fire
or sending alarms on changing environmental conditions, such as
wind gusts. Although in these situations the individual sensor
readings may not consume much bandwidth (e.g. a single seismic
sensor may rarely exceed 10kbps), the timely delivery of the data,
in the midst of other data already present in the network, can be
of critical importance. The results of this joint activity will
research and implement strategies to ensure that high priority
traffic can obtain the resources needed to traverse the network,
while still being considerate of the need of lower priority data.
Poster overview of the resource management in
wireless sensor networks project
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The team of collaborators currently consists of two faculty
members and three students. Prof. Tajana Simunic Rosing, CSE
department, is an expert in resource management of embedded wireless
systems, while Prof. Tara Javidi, ECE department, has a strong
background in stochastic resource allocation in wireless networks.
Jaewook Shim, PhD student in ECE, is focusing on statistical analysis
of data traffic on HPWREN and development of theoretical bounds on
the bandwidth improvements possible when scheduling data delivery
on wireless channel. Daeseob Lim, MS student in CSE, is developing
a simulation environment which he will use to evaluate scheduling
and routing algorithms developed by our team. Donghwan Jeong, PhD
student in CSE, is currently setting up a small sensor network in
our lab for testing and measurement of our scheduling and routing
algorithms, and has started working on policy based routing.
Prof. Tajana Simunic Rosing, UCSD CSE
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