TR2004-119

Space-Time LDPC with Layered Structure for MIMO Systems

    •  Du, J., Li, Y., Gu, D., Molisch, A., Zhang, J., "Space-Time LDPC with Layered Structure for MIMO Systems", International Symposium on Wireless Personal Multimedia Communications (WPMC), September 2004.
      BibTeX TR2004-119 PDF
      • @inproceedings{Du2004sep2,
      • author = {Du, J. and Li, Y. and Gu, D. and Molisch, A. and Zhang, J.},
      • title = {Space-Time LDPC with Layered Structure for MIMO Systems},
      • booktitle = {International Symposium on Wireless Personal Multimedia Communications (WPMC)},
      • year = 2004,
      • month = sep,
      • url = {https://www.merl.com/publications/TR2004-119}
      • }
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  • Research Area:

    Communications

Abstract:

In this paper, we incorporate the layered structure with low-density parity-check codes (LDPC) to develop a quasi-block diagonal LDPC space-time structure. The lower triangular structure of the parity check matrix introduces correlation between layers. In addition, each layer, as a part of the whole codeword, can be decoded while taking information from other undetected layers to improve the decoding performance. Belief propagation of the current layer is stopped as soon as those parity checks involving only the current layer and detected layers are satisfied. Simulation shows that the proposed system outperforms the conventional V-BLAST by 0.5 dB at WER=1%.

 

  • Related News & Events

    •  NEWS    WPMC 2004: publication by Jinyun Zhang and others
      Date: September 12, 2004
      Where: International Symposium on Wireless Personal Multimedia Communications (WPMC)
      MERL Contact: Jinyun Zhang
      Research Area: Communications
      Brief
      • The paper "Space-Time LDPC with Layered Structure for MIMO Systems" by Du, J., Li, Y., Gu, D., Molisch, A. and Zhang, J. was presented at the International Symposium on Wireless Personal Multimedia Communications (WPMC).
    •