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On Analyzing LDPC Codes over Multiantenna MC-CDMA System

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  • S. Suresh Kumar
  • M. Rajaram

Abstract

Multiantenna multicarrier code-division multiple access (MC-CDMA) technique has been attracting much attention for designing future broadband wireless systems. In addition, low-density parity-check (LDPC) code, a promising near-optimal error correction code, is also being widely considered in next generation communication systems. In this paper, we propose a simple method to construct a regular quasicyclic low-density parity-check (QC-LDPC) code to improve the transmission performance over the precoded MC-CDMA system with limited feedback. Simulation results show that the coding gain of the proposed QC-LDPC codes is larger than that of the Reed-Solomon codes, and the performance of the multiantenna MC-CDMA system can be greatly improved by these QC-LDPC codes when the data rate is high.

Suggested Citation

  • S. Suresh Kumar & M. Rajaram, 2014. "On Analyzing LDPC Codes over Multiantenna MC-CDMA System," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-6, July.
    • Handle: RePEc:hin:jnlmpe:652527
    DOI: 10.1155/2014/652527
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