5th International ICST Conference on Communications and Networking in China

Research Article

Construction of Unitary Space-Time constellations in the interleaving sight

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  • @INPROCEEDINGS{10.4108/chinacom.2010.72,
        author={Hui Ji and Ju Liu and Dapeng Zhang and Guowei Zhang and Yuxi Liu},
        title={Construction of Unitary Space-Time constellations in the interleaving sight},
        proceedings={5th International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2011},
        month={1},
        keywords={MIMO USTM UST symbol Unitary Space-Time Constellations Interleave},
        doi={10.4108/chinacom.2010.72}
    }
    
  • Hui Ji
    Ju Liu
    Dapeng Zhang
    Guowei Zhang
    Yuxi Liu
    Year: 2011
    Construction of Unitary Space-Time constellations in the interleaving sight
    CHINACOM
    ICST
    DOI: 10.4108/chinacom.2010.72
Hui Ji1,2,*, Ju Liu1,*, Dapeng Zhang1,*, Guowei Zhang1,*, Yuxi Liu1,*
  • 1: School of Information Science and Engineering, Shandong University, Jinan, China 250100
  • 2: State Key Lab. of Integrated Services Networks, Xidian University, Xi’an, China 710071
*Contact email: jihui016@mail.sdu.edu.cn, juliu@sdu.edu.cn, dpzhang@sdu.edu.cn, zgw415@yahoo.com.cn, liouyuxisimon@163.com

Abstract

Unitary space-time modulation (USTM) is ideally suited for rapid fading scenarios, where neither the transmitter nor the receiver have the channel state information (CSI). However, it has received limited attention compared with the space-time coding schemes that need CSI. An important reason for that is USTM needs too large calculation amount when meeting with a large size constellation. We propose a size-reduced method for unitary space-time constellations in the sight of interleaving. Resorting to the UST (Unitary Space-Time) symbol-wise interleaving, we give a pseudo-random fading effect to the transmitted signals for the receiver to meet the channel requirement in theory. Simulation results show that compared with existing almost unachievable schemes, our method can greatly reduce the complexity of calculation only with a slight penalty in theory.