短长度非规则重复累积码的构造

吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (01): 255-0259.

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Construction of short-length irregular repeataccumulate code

HU Jun-feng^1,2, ZHANG Hai-lin¹,BAI Jin³,HAN Fei⁴

1.State Key Laboratory of Integrated Service Network, Xidian University, Xi′an 710071, China;2.CETC No. 20 Research Institute, Xi′an 710068, China;3.No.203 Research Insititute of China Ordnance Industries,Xi′an 710065,China|4.College of Communication Engineering,Xidian University,Xi′an 710071,China

Received:2008-06-05 Online:2010-01-01 Published:2010-01-01

Abstract

Abstract:

To construct the high performance short-length irregular repeataccumulate(IRA) codes, the major factors affecting the performance of the finitelength IRA codes were analyzed. Based on the analysis, improvement was made on the progressiveedgegrowth(PEG) algorithm. In the improved algorithm, more protection is given to the degree-2 variable nodes and the appear probability of the lowweight code words is reduced. Simulation results showed that the short-length IRA codes constructed by the proposed algorithm exhibit low errorfloors without penalty on the bit error rate in the low signaltonoise ratio region.

Key words: communication technology, low-density paritycheck (LDPC) code, irregular repeataccumulate (IRA) code, progressiveedgegrowth (PEG) algorithm

CLC Number:

TN911.22

HU Jun-feng,ZHANG Hai-lin,BAI Jin,HAN Fei. Construction of short-length irregular repeataccumulate code[J].吉林大学学报(工学版), 2010, 40(01): 255-0259.

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