Cooperative Diversity Based on LDPC Code

  • Weijia Lei
  • Xianzhong Xie
  • Guangjun Li


Diversity is an effective method to resist the fading effect in wireless channel. Limited by size, weight and cost, it is difficulty to use the multi-antenna technique on the terminal of wireless communication. Cooperative communication allows the sharing of the antennas among the mobile terminals which have single antenna. Thus creates virtual multi-antenna, and realizes transmitting diversity. LDPC code is a good linear block code. By using the intrinsic coherence among the bits of the code word, we can create a coded cooperative communication among the mobile users to effectively improve the system performance. This paper proposes a cooperative communication method based on LDPC code, and provides the simulation results.


Diversity Gain Code Word Cooperative Communication Turbo Code Cooperative Diversity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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    R. G. Gallager, “Low-Density Parity-Check Codes”. Cambridge, Mass, MIT Press, 1963.Google Scholar
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    M. C. Davey, “Error-correction using Low-Density Parity-Check Codes”. Ph. D Thesis, University of Cambridge, 1999.Google Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • Weijia Lei
    • 1
  • Xianzhong Xie
    • 2
  • Guangjun Li
    • 1
  1. 1.SCIEUniversity of Electronic Science Technology of ChinaChina
  2. 2.KLMCChongqing University of Posts and TelecommunicationsChina

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