Title :
Constructing low-density parity-check codes
Author :
Bond, J.W. ; Hui, S. ; Schmid, H.
Author_Institution :
Sci. Applications Int. Corp., San Diego, CA, USA
Abstract :
A low-density parity-check code (LDPCC) has been constructed for a block size of 107 that provides performance within 0.01 dB of Shannon´s limit using iterative belief propagation (IBP) decoding. The LDPCC can be constructed for nearly any code rate and block size and encoding and IBP decoding is practical for many applications. We describe LDPCC and their decoding. We also illustrate the performance achievable for the codes by presenting performance results for rate 1/2 and 4/7 codes for a nominal 1000-bit block size. These codes will be used in an operational communication system
Keywords :
error detection codes; iterative decoding; Shannon´s limit; block size; code rate; error detection codes; iterative belief propagation decoding; low-density parity-check codes; operational communication system; performance results; Belief propagation; Bonding; Communication systems; Equations; Error correction; Iterative decoding; Mathematics; Paper technology; Parity check codes; Probability;
Conference_Titel :
EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA
Conference_Location :
Munich
Print_ISBN :
0-7803-6323-X
DOI :
10.1109/EURCOM.2000.874812
