Title :
Impact of roundoff errors in LDPC decoding
Author :
Kanistras, N. ; Paliouras, V.
Author_Institution :
Comput. Eng. & Inf. Dept., Univ. of Patras, Patras
Abstract :
In this paper the impact of roundoff mechanisms on the performance of message-passing LDPC decoding is studied. It is shown that finite word length introduces error by means of two mechanisms, each of which is analyzed. The impact and behavior of the two mechanisms are clarified by experimental results.
Keywords :
decoding; message passing; parity check codes; low-density parity check code decoding; message passing; roundoff mechanisms; Code standards; Computer errors; Decoding; Digital video broadcasting; Ethernet networks; Informatics; Iterative algorithms; Parity check codes; Roundoff errors; Satellites;
Conference_Titel :
Wireless Pervasive Computing, 2008. ISWPC 2008. 3rd International Symposium on
Conference_Location :
Santorini
Print_ISBN :
978-1-4244-1652-3
Electronic_ISBN :
978-1-4244-1653-0
DOI :
10.1109/ISWPC.2008.4556289
