Events Calendar

Joint Source-Channel Coding at the Application Layer

Speaker: Ozgun Bursalioglu Yilmaz
PhD. StudentAbstract: The multicasting of an independent and identically distributed
Gaussian source over a binary erasure broadcast channel is considered.
This model applies to a one-to-many transmission scenario in which some
mechanism at the physical layer delivers information packets with losses
represented by erasures, and users are subject to different erasure
probabilities. The reconstruction signal-to-noise ratio (SNR) region
achieved by concatenating a multi-resolution source code with a
broadcast channel code is characterized and four convex optimization
problems corresponding to different performance criteria are solved.
Each problem defines a particular operating point on the dominant face
of the SNR region. Layered joint source-channel codes are constructed
based on the concatenation of embedded scalar quantizers with binary
raptor encoders. The proposed schemes are shown to operate very close to
the theoretical optimum.Biography: Ozgun Bursalioglu Yilmaz is a PhD. student working with Prof.
Caire at Ming Hsieh Department of Electrical Engineering, University of
Southern California (USC) where she was honored with Dean's Graduate
Fellowship and USC Annenberg Graduate Fellowship Awards. Previously she
received M.S. and B.S. degrees from University of California, Riverside
(2006) and Middle East Technical University (METU), Ankara, Turkey
(2004), respectively. Her senior design project was selected for
"Innovative and Robust Design Award" by METU Electrical Engineering
Department. She received best student paper award with her co-authors at
International Conference on Acoustics, Speech and Signal Processing,
Toulouse, France, May 2006.Host: Giuseppe Caire, caire@usc.edu, EEB 528, x07326

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 539

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos