J4 ›› 2013, Vol. 40 ›› Issue (1): 155-161.doi: 10.3969/j.issn.1001-2400.2013.01.027

• Original Articles • Previous Articles     Next Articles

Construction and decoding of second-order magic square  convolutional codes

ZHANG Chengchang1;PENG Wanquan2;WU Xiaobing2   

  1. (1. College of Communication Eng. of Chongqing Univ., Chongqing  400044, China;
    2. Chongqing Vocational Institute of Eng., Chongqing  400037, China)
  • Received:2011-09-01 Online:2013-02-20 Published:2013-03-28
  • Contact: ZHANG Chengchang E-mail:zcc@cqu.edu.cn

Abstract:

Based on linear block codes and convolutional codes, the paper constructs a (2k, k, 2) convolutional code, with the state transition described by defining a 3d matrix. In the decoding part, some matrix processing modules are brought in to design a viterbi matrix decoder with parallel processing capability, and the single structure of decoder is good for its analysis and design. Simulation results demonstrate that this convolutional codes really possess a highly-efficient decoding speed and good error-correcting capability.

Key words: convolutional codes, state transition matrix, magic square, viterbi algorithm

CLC Number: 

  • TN911.22