Events Calendar

Multi-Dimensional EXIT Analysis and Optimization for Multi-User Receivers

Speaker: Bathiya Senanayake, Australian National University, Australia

Talk Title: Multi-Dimensional EXIT Analysis and Optimization for Multi-User Receivers

Abstract: For the first time we develop a multi-dimensional extrinsic information transfer (EXIT) analysis for a power allocated multi-user detectora s a tool to better understand the convergence behavior of iterative decoding schemes. We derive a K dimensional EXIT chart in order to analyze a system with K power levels. We state a theorem that predicts the convergence point of the system. The presented analysis is used to perform power optimization. We show through simulation our analysis closely matches the simulation results. The multi-dimensional EXIT analysis discussed here provides new insight in to receiver performance analysis and can be used to design near capacity achieving multi-user systems.

Biography: Mr. Bathiya Senanayake was awarded a Bachelor of Engineering/IT degree from the Australian National University in 2006 (with honours 1), and a Masters of ICT from the ANU in 2007. Now he is a PhD student in the Research School of Information Sciences and Engineering, the Australian National University, Australia. His research interests are in the area of iterative receiver design, multiple-access communications, digital signal processing, DSP synthesis in hardware (HDL), with emphasis on CDMA/IDMA systems.

Host: Keith Chugg

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

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos