Unequal error protection using LT codes and block duplication.

Date
2008-08
Authors
Ahmad, Shakeel
Hamzaoui, Raouf
Al-Akaidi, Marwan, 1959-
Journal Title
Journal ISSN
ISSN
DOI
Volume Title
Publisher
Eurosis
Peer reviewed
Yes
Abstract
Luby Transform (LT) codes are powerful packet erasure codes with low encoding and decoding complexity. We provide a simple method to improve the bit error rate performance of LT codes. Moreover, we exploit our method to design a new approach for unequal error protection with LT codes. We used simulations to compare our approach with a state of the art unequal error protection technique when the information symbols are partitioned into two protection levels (most important bits and least important bits). Our approach yielded lower bit error rates for the two protection levels and lower encoding complexity at the cost of moderately higher decoding complexity.
Description
Keywords
communications, channel coding, performance analysis, fountain codes, unequal error protection
Citation
Ahmad, S., Hamzaoui, R. and Al-Akaidi, M. (2008) Unequal error protection using LT codes and block duplication, Proc. MESM 08, Middle Eastern Multiconference on Simulation and Modelling, Amman,
Research Institute
Institute of Artificial Intelligence (IAI)
Institute of Engineering Sciences (IES)