Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (6): 135-138.doi: 10.13190/jbupt.200706.135.032

• Reports • Previous Articles    

Design of Puncturing Scheme for Finite-Length LDPC Codes

WEN Na, XU Yong-tai, ZHANG Ping   

  1. (1. Key Laboratory of Universal Wireless Communications Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2. Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876, China)
  • Received:2007-01-11 Revised:2007-06-04 Online:2007-12-31 Published:2007-12-31
  • Contact: WEN Na

Abstract:

Proposed a puncturing scheme for finite-length low density parity check code (LDPC) codes. According to the rule of making the average girth maximum, we got the indices of the punctured bits. Simulation results show signal to noise ratio(SNR) gain has been achieved compared to random puncturing scheme. The proposed scheme alleviates the error floor and resolves the puncturing problem in the practice system.

Key words: finite length code, low density parity check code, puncturing

CLC Number: