Title: ECE news
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Permanent Link: http://ufdc.ufl.edu/UF00091053/00012
 Material Information
Title: ECE news
Series Title: ECE news
Physical Description: Serial
Language: English
Creator: Department of Electrical and Computer Engineering, College of Engineering, University of Florida
Publisher: Department of Electrical and Computer Engineering, College of Engineering, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: Spring 2007
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Bibliographic ID: UF00091053
Volume ID: VID00012
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.

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UNIVERSITY pf
UFFLORIDA
The Foundation for The Gator Nation


Electrical and


Computer Engineering

Spring 2007


message fim te Chair

Back to back titles in basketball and current national champions in
football It's great to be a Florida Gator!

Excellence is not limited to the athletic department, however. We
continue to do great things here in ECE.

We will break a record for the number of Ph.D.'s graduated this
year and this is the third straight year we've broken our previous
record. We will rank among the top programs in the country this
year in Ph.D. graduations /faculty. We should exceed $10,000,000
in research expenditures this year. Last year, we published over
500 refereed articles. We're home to a new National Science
Foundation (NSF) center in reconfigurable computing headed by Dr. Alan George. Our
proposal and award levels remain high so the future looks bright. Inside you can also read
about a novel project to detect breast cancer.

Our faculty continue to win awards for excellence. Dapeng Wu won an prestigious NSF
CAREER award for young faculty. Liuqing Yang won an Office of Naval Research Young
Investigator Award. Several students have won best paper awards details are inside.
We have been interviewing candidates this spring. We have four openings this year we
are looking to fill and have interviewed 10 candidates. We hope to have many of these
new faculty in place by the end of the calendar year. Look for profiles in the fall newsletter.
With this group, we will have as many as eighteen untenured faculty in the department this
fall. The department continues to get younger. These new faculty challenge the existing
faculty and students with new ideas, approaches, and research areas.

Our student groups continue to do well. The IEEE student chapter won several awards at
the IEEE Southeastern Conference. I'm sure you remember the national championship
SubjuGator covered in the last issue. We also won several awards at the engineer's fair
this year- including the best overall exhibit, and more details are inside.

Unfortunately, not all things are rosy. Following the national trend, our undergraduate
enrollment is down. We have started several efforts aimed at improving retention this year
and are evaluating the most successful techniques. We've started two new courses at
the lower division. One is focused on a robot platform and introduces students to several
concepts through guided projects. The other focuses on ethics, professional issues, and
includes a hands-on lab where students can build a radio. We've also added a new course
to the curriculum designed to help students master some of the math skills necessary for
success in our courses. Hopefully, we can rebound the undergraduate enrollment.

The faculty, staff, and students of the department continue to do great things. We hope you
are as proud of us as you are of our national championship sports teams. Go Gators!







Engineer's Fair 2007


The Engineering and Science Fair is one of the largest
events held during Engineers' Week. It's purpose is to edu-
cate university students, local primary-education students,
alumni and the general public about the achievements of
all engineering disciplines and their practical applications in
society and to ultimately inspire students to pursue an engi-
neering education.


Prof. John Harris and his students from the Computational
Neural Engineering Lab (CNEL) presented an exhibit called
Do You Hear What I Hear? that explored the issues in hear-
ing and hearing loss based on collaborative research with
the Communication Sciences and Disorders Department.

With four different booths, they educated the public about
hearing loss as well as had fun in the process.

The highlight of their exhibit was a KEMAR mannequin
which was used to measure the sound pressure levels of
visitors who were wearing iPODs or other mp3 players or
video games.


P IrclrkLE~ I-


for financial support", said Harris. More information and
pictures about the exhibit can be found at: www.cnel.ufl.edu/
hybrid/efair2007.html

Eta Kappa Nu (HKN), the Electrical and Computer
Engineering Honor Society, created an innovative display
entitled The Nintendo Wii: Transforming Technology into Fun
to teach primary school students how one of their favorite
toys works. By showcasing the popular game console, they
were able to show the young students that engineering is a
fun and exciting part of their lives. It proved to be a valuable
opportunity to emphasize the importance of an education
with a strong foundation in math and science and was one of
the most popular exhibits at the fair.


Brian Sapp explains to Alachua Elementary
School fourth grader Christopher Beaty
how the Nintendo Wii works.


HKN won the UF Engineering Bowl 2007. The top four
societies, determined by a preliminary round, faced off in
a Jeopardy-style science bowl. This year, the E-bowl was
once again hosted by the extremely humorous Dr. Fazil
Najafi, professor of Civil and Coastal Engineering. Questions
ranged anywhere from what UF's engineering curriculum is
all about to anything from calculus, statics, and physics to
a few surprises.

The Machine Intelligence Laboratory (MIL) also participat-
ed. Featured at the event were robots as diverse as the
two-time and defending world AUVSI champion submarine
(SubjuGator), a Mars
Rover, and an autono-
mous lawnmower.


Their exhibit won the trophy for the 1st Place Overall
Outstanding Exhibit and also for the Best Audience
Involvement! "Much thanks goes to many people who
helped but especially Dr. Alice Holmes in CSD, the audiol-
ogy students help man the booth and the ECE department







ECE Junior faculty Member eceives

VSF CareerAward


Assistant Professor Dapeng Wu received a National Science
Foundation (NSF) Faculty Early Career Development
(CAREER) award, the NSF's most presitgious award for
new faculty members.
Wu received the CAREER award for his proj-
ect "CAREER: Delay-Constrained Wireless
Networking: Where Shannon Meets Erlang."
The grail of next-generation wireless networks
is providing real-time services for delay-sensi-
tive applications. Delay sensitive applications
such as voice-over-IP, require that the wire-
less networks provide quality of service (QoS)
guarantees, e.g., data rate, delay bound, and
delay bound violation probability. However, the
unreliability of wireless channels makes it par-
ticularly challenging to design QoS provision-
ing mechanisms for wireless networks.
In wireless networking, the area of providing
QoS assurance with an emphasis on delay constraints is
usually called delay constrained wireless networking. This
project is concerned about provisioning statistical delay
guarantees. The problem is challenging since both delay-


bound violation (caused by queueing) and bit errors (due to
channel noise) need to be addressed. To address this chal-
lenge, research is conducted in three aspects: 1) theoretic
performance limits -- developing a joint coding and queueing
approach to addressing the challenging issue
of quantifying the probability of both physi-
cal-layer bit errors and link-layer delay bound
violation, 2) algorithm design -- developing an
observer-controller model and a joint estima-
tion/control approach to designing QoS pro-
visioning mechanisms that explicitly provide
statistical delay guarantees, and 3) experimen-
Station -- developing a software-radio-based
testbed, then implementing and evaluating the
S algorithms over the testbed.
The joint coding and queueing approach will
not only yield important principles in design
S methodologies for delay-constrained wireless
networking, but also advance the union of
information theory and queueing theory. The research will
have a big impact on supporting delay sensitive applications
such as mobile TV. The research findings will be dissemi-
nated through conferences and journals.


Faculty News


SA book, co-authored by Dr. William
Eisenstadt, entitled Microwave Differential
Circuit Design, has been released.

Changzhi Li, PhD candidate
under the supervision of Dr.
Jenshan Lin, received the
2007 IEEE Radio and Wireless Symposium
Best Student Paper Award at the January 9-
11,2007, meeting in Long Beach, California.

Dr. Dapeng Wu received the National
Science Foundation Career Award for his pro-
prosal, "CAREER: Delay-Constrained Wireless
Networking Where Shannon Meets Erlang," in
January 2007.

The paper co-authored by
graduate student Hongqiang Zhai and Dr.
Yuguang Fang, entitled "Impact of Routing
Metrics on Path Capacity in Multi-rate and
Multi-hop Wireless Ad Hoc Networks" re-
ceived the Best PaperAward at the 14th IEEE


International Conference on Network Protocols (ICNP'06),
at its meeting November 12-15, 2006.

Dr. Liuqing Yang was selected as a winner
in the 2007 Office of Naval Research Young
Investigator Program competition.

S Dr. Vladimir Rakov received
the 2006 Editor's Citation for
Excellence in Refereeing "for outstand-
ing service to the authors and readers of
Geophysical Research Letters", American
Geophysical Union.





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: i ^'m,








Contrast Enhancementfor thermaItcoustic Breast Cancer

Imaging via sonantt Stimufation


Drs. Henry Zmuda and Jian Li are involved with an interdisci-
plinary research plan to develop enhanced contrast thermal
acoustic imaging (TAI) technology
for the detection of breast cancer
by combining amplitude-modulated
electromagnetic (EM) field excita-
tion, resonant acoustic scattering,
and advanced signal processing
techniques.

EM-induced TAI combines the
merits of both EM stimulation and
ultrasound imaging, while over-
coming their respective limitations.
EM imaging provides excellent
contrast between cancerous and
normal breast tissue, but the long
wavelengths provide poor spatial resolution. Conventional
ultrasound imaging possesses very fine millimeter-range
spatial resolution but poor soft tissue contrast.

The effectiveness of X-ray mammography has been ques-
tioned in recent years and is currently under debate. Breast
tissues of young women typically possess a higher dense-
to-fatty tissue ratio. Mammography presents its major limita-
tion in the sector of the population of highest public health
interest and criticality.

Health care facilities and institutions often carry a significant
financial burden from providing care to the female population
via implementation of screening programs, especially in rural


and remote regions. This, added to the inherent limitations
of mammography, has been the driving force behind efforts
to develop alternative technologies for the early detection of
breast cancer.

There is an urgent need
for new inexpensive
detection techniques,
which should be non-
invasive, inexpensive,
widely available, easy
to apply, and objec-
tive and consistent in
providing results that
are easy to interpret, and yet have low health risk, minimal
discomfort, high sensitivity to tumors and high specificity to
malignancies. EM-induced TAI is an imaging modality with
the potential to address all of these requirements.

Working with them on the project are Drs. Mark Sheplak and
Lou Cattafesta from Mechanical and Aerospace Engineering,
Dr. Huabie Jiang from Biomedical Engineering, and Dr.
Manuel Arreola from Radiology.


MAE graduate students
Benjamin A. Griffin and Alina
K. Soderholm demonstrate
the apparatus to be used to
verify the fundamental theory
of the project.


Student Cfapter News



The IEEE Student Chapter attended the annual IEEE
Southeastern Conference from March 22-26 in Richmond,
Virginia. This conference is attended by over 40 different
universities from the Southeastern regions of the United
States. UF competed in four competitions and placed 3rd in
Ethics, 2nd in T-shirt design, and 2nd in Software. The stu-
dent chapter also received the Exemplary Student Branch
Award from the Southeastern Region. Overall the student
chapter represented the university very well, and added
more accolades to what has already been an exciting year
here at the University of Florida.







WE 'WtVDD LFqNE TO ARTWPS*M Tro


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