Journal of Systems Engineering and Electronics ›› 2013, Vol. 35 ›› Issue (3): 634-637.doi: 10.3969/j.issn.1001-506X.2013.03.32

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Design of short length system Luby transform code of high rate in concatenated scheme

LIU Xiao-jian1， SUN Xiao-jun2   

  1. 1. 802 Institute， China Aerospace Science and Industry Corporation, Shanghai 200090, China;
    2. National Mobile Communication Key Laboratory, Southeast University, Nanjing 210096, China
  • Online:2013-03-20 Published:2010-01-03

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Abstract:

The performance of error control coding (e. g., low density parity check codes) can be improved by the concatenating system Luby transform (SLT) code of high rate and short length as outer codes. However, the traditional constructive method is only designed to the constructed SLT code of a middle or low rate. To solve the problem, a novel constructive method is given by optimizing the degree distribution of the parity packets as well as the message packets. The constructive process is also improved to achieve a better performance. Simulation results show that SLT codes constructed by the new method perform well as the outer codes.

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