Speaker:
Arshad Ahmed
ECE, UIUC
Title:
Algorithms and Architectures for Soft-Decoding Reed-Solomon Codes
Abstract:
Error control codes are widely used to achieve reliable communication in the presence of channel noise. Reed-Solomon codes, which are capable of correcting random errors as well as burst errors, are popular in a wide variety of applications such as satellite communication, ADSL, and in disk drives. The use of soft-information in decoding, further improves the error correction capabilities of these codes. However, the computational complexity of Reed-Solomon soft-decoding algorithms is currently a factor limiting their use in commercial systems. This talk will begin with an overview of soft-decoding algorithms for Reed-Solomon codes and go on to discuss complexity reducing transformations both at the algorithm and at the architectural level.
Biography:
Arshad Ahmed is currently a Ph.D. candidate in the Electrical and Computer Engineering Dept. at UIUC. He received the Bachelor of Engineering in Electrical Engineering from the National Institute of Technology, Trichy and the Master of Engineering in Digital Signal Processing from the Indian Institute of Science, Bangalore, in 1998 and 2000 respectively. He is a recepient of the Vodafone Research Fellowship for the academic year 2004-05.