An improved algorithm for constructing PS-LDPC codes

作者：Liu Ning Qing^*; Wang Kun; Sun Hao Wei

来源：Journal of Harbin Institute of Technology, 2011, 43(3): 29-32.

• Closed path
• Girth
• Min-distance
• Partition-and-Shift codes
• Shift matrix

Partition-and-Shift codes have been paid much attention in the area of error correction in telecommunication system, because of its ideal girth and min-distance property. An Improved algorithm for constructing PS-LDPC codes is presented to improve constructing efficiency, by employing a precise criterion for choosing the shift parameters in shift matrix and a perspicuous and reasonable method to search for closed paths simply. Finally, the improved PS-LDPC codes are simulated over AWGN channel and a better BER performance is obtained.

• 出版日期2011