TY - JOUR
T1 - On unequal error protection LDPC codes based on plotkin-type constructions
AU - Kumar, Vidya
AU - Milenkovic, Olgica
N1 - Funding Information:
Paper approved by T.-K. Truong, the Editor for Coding Theory and Techniques of the IEEE Communications Society. Manuscript received November 23, 2004; revised May 19, 2005 and August 5, 2005. This work was supported by the Colorado Center for Information Storage, Boulder, CO. This paper was presented in part at the Global Telecommunications Conference, Dallas, TX, December 2004.
PY - 2006/6
Y1 - 2006/6
N2 - We introduce a new family of unequal error protection (UEP) codes, based on low-density parity-check (LDPC) component codes and Plotkin-type constructions. The codes are decoded iteratively in multiple stages, and the order of decoding determines the level of error protection. The level of UEP among the code bits is also influenced by the choice of the LDPC component codes and by some new reliability features incorporated into the decoding process. The proposed scheme offers a very good tradeoff between code performance on one side and encoding/decoding and storage complexity on the other side. The novel approach to UEP also allows for finding simple approximations for the achievable degrees of UEP, which can be used to govern practical code design implementations.
AB - We introduce a new family of unequal error protection (UEP) codes, based on low-density parity-check (LDPC) component codes and Plotkin-type constructions. The codes are decoded iteratively in multiple stages, and the order of decoding determines the level of error protection. The level of UEP among the code bits is also influenced by the choice of the LDPC component codes and by some new reliability features incorporated into the decoding process. The proposed scheme offers a very good tradeoff between code performance on one side and encoding/decoding and storage complexity on the other side. The novel approach to UEP also allows for finding simple approximations for the achievable degrees of UEP, which can be used to govern practical code design implementations.
KW - Low-density parity-check (LDPC) codes
KW - Plotkin construction
KW - Unequal error protection (UEP)
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U2 - 10.1109/TCOMM.2006.876842
DO - 10.1109/TCOMM.2006.876842
M3 - Article
AN - SCOPUS:33947189567
SN - 0090-6778
VL - 54
SP - 994
EP - 1005
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 6
ER -