TY - GEN
T1 - Effective puncturing schemes for block-type low-density parity-check codes
AU - Choi, Sunghoon
AU - Shin, Youchul
AU - Heo, Jun
AU - Cho, Kihyoung
AU - Oh, Minseok
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2007
Y1 - 2007
N2 - In this paper, a puncturing method for block-type rate-compatible Low-Density Parity-Check (LDPC) codes with 'good' performance is proposed. Puncturing is a scheme to obtain a series of higher rate codes from a low rate mother code. It is widely used in channel coding but it causes performance loss compared with non-punctured error correcting codes at the same rate. There have been many researches about puncturing to reduce the performance loss. However, these researches are not optimized for specific types such as block-type LDPC (B-LDPC) codes adopted in IEEE 802.16e standards. B-LDPC codes are constructed as irregular quasi-cyclic LDPC (QC-LDPC) codes for reduced required memory size and efficient encoding. In this paper, we suggest a modified puncturing scheme which is optimized for B-LDPC codes and compare the performance with previous scheme.
AB - In this paper, a puncturing method for block-type rate-compatible Low-Density Parity-Check (LDPC) codes with 'good' performance is proposed. Puncturing is a scheme to obtain a series of higher rate codes from a low rate mother code. It is widely used in channel coding but it causes performance loss compared with non-punctured error correcting codes at the same rate. There have been many researches about puncturing to reduce the performance loss. However, these researches are not optimized for specific types such as block-type LDPC (B-LDPC) codes adopted in IEEE 802.16e standards. B-LDPC codes are constructed as irregular quasi-cyclic LDPC (QC-LDPC) codes for reduced required memory size and efficient encoding. In this paper, we suggest a modified puncturing scheme which is optimized for B-LDPC codes and compare the performance with previous scheme.
KW - B-grouping/sorting
KW - Grouping
KW - Low-density parity-check (LDPC) codes
KW - Puncturing
KW - Rate-compatible
KW - Sorting
UR - http://www.scopus.com/inward/record.url?scp=34547281857&partnerID=8YFLogxK
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U2 - 10.1109/VETECS.2007.382
DO - 10.1109/VETECS.2007.382
M3 - Conference contribution
AN - SCOPUS:34547281857
SN - 1424402662
SN - 9781424402663
T3 - IEEE Vehicular Technology Conference
SP - 1841
EP - 1845
BT - 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Y2 - 22 April 2007 through 25 April 2007
ER -