Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Quadrant-partitioned Blind Equalization Algorithm for QAM Demodulation

QAM 복조용 4분면 분할 자력복구 채널등화 알고리즘

  • Ryu, Seok-Kyu (Dept. of Control and Instrumentation Eng., Myong Ji University) ;
  • Hwang, Hu-Mor (Dept. of Control and Instrumentation Eng., Myong Ji University)
  • 류석규 (명지대 제어계측공학과) ;
  • 황유모 (명지대 제어계측공학과)
  • Published : 1998.11.28
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Abstract

We propose a robust blind equalization algorithm based on quadrant-partitioned constellations for QAM demodulation. The algorithm divides the received M-QAM constellations into simple four quadrant. The channel equalization for symbols in each quadrant can be accomplished fast and reliably using the Constant Modulus Algorithm(CMA) and the Stop-and-Go Algorithm(SGA). Test results confirm that the proposed algorithm with lower complexity outperforms both the CMA and the SGA in reducing the SER as well as the MSE at the equalizer output.

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