Title :
Ripple design of LT codes for AWGN channel
Author :
Sorensen, Jesper H. ; Koike-Akino, Toshiaki ; Orlik, Philip ; Ostergaard, Jan ; Popovski, Petar
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark
Abstract :
In this paper, we present an analytical framework for designing LT codes in additive white Gaussian noise (AWGN) channels. We show that some of analytical results from binary erasure channels (BEC) also hold in AWGN channels with slight modifications. This enables us to apply a ripple-based design approach, which until now has only been used in the BEC. LT codes designed by this way show promising performance which is near the Shannon limit even with short codewords.
Keywords :
AWGN channels; channel coding; AWGN channel; AWGN channels; BEC. LT codes; LT codes; Shannon limit; additive white Gaussian noise; binary erasure channels; ripple-based design; short codewords; AWGN; AWGN channels; Decoding; Entropy; Error analysis; Noise measurement; Signal to noise ratio;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6283580
