Events Calendar

Finite-Field Multi-Carrier Modulation

Speaker: Lin Luo, University of South Australia (UniSA), Australia

Talk Title: Finite-Field Multi-Carrier Modulation

Abstract: Multicarrier modulation, e.g. OFDM, has been endorsed by leading standards in both wireline and wireless high speed digital communications. However, the large dynamic range of an OFDM signal causes an inefficient transmit radio frequency circuitry and distorted signal modulation. We introduce the concept of processing signals in a finite field and replace the DFT by finite-field transforms, which reduce the OFDM Peak-to-Average Power Ratio (PAPR) significantly to the range of a finite alphabet set. Most importantly, the system model can be treated as a block code that is corrupted by the additive channel noise, which means the new system has inherent error control capability. Furthermore, processing signals in a finite field not only make modulation part of error correcting coding, but also design codes by exploiting the philosophy of modulation. We will study a framework for multi-carrier modulation with finite-field transforms.

Biography: Dr. Lin Luo received B.E. in Electronic Engineering from University of Electronic Science and Engineering in China (UESTC) in 2002, M.E. in Telecommunications Engineering from The University of Melbourne in 2004, and a Ph.D. in Telecommunications Engineering from The Australian National University (ANU) in 2009. Since June 2009, he has been a Research Fellow at the Institute for Telecommunications Research (ITR), University of South Australia (UniSA), Australia. His current research interests include multi-carrier and single-carrier systems, green communications, MIMO, and vehicle-to-vehicle communications.

Host: Andreas Molisch, 04670, EEB 530, molisch@usc.edu

Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos