6th International ICST Conference on Communications and Networking in China

Research Article

Transmission efficient Modulation Based on Constellation Switching in Wireless Communication

  • @INPROCEEDINGS{10.1109/ChinaCom.2011.6158127,
        author={Wei Lu and Desheng Wang and Yingzhuang Liu},
        title={Transmission efficient Modulation Based on Constellation Switching in Wireless Communication},
        proceedings={6th International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2012},
        month={3},
        keywords={constellation switching modulation; error-correction coding},
        doi={10.1109/ChinaCom.2011.6158127}
    }
    
  • Wei Lu
    Desheng Wang
    Yingzhuang Liu
    Year: 2012
    Transmission efficient Modulation Based on Constellation Switching in Wireless Communication
    CHINACOM
    IEEE
    DOI: 10.1109/ChinaCom.2011.6158127
Wei Lu,*, Desheng Wang1, Yingzhuang Liu1
  • 1: HUST
*Contact email: lvweiwhut@yahoo.com.cn

Abstract

In this paper we propose a new efficient data modulation method, which is based on constellation switching modulation (CSM). The original bit stream is divided into sub-blocks, and each sub-block is modulated according to the constellation indicated by the constellation indicating bits (CIB) which are composed of data bits and parity bits. Error-correction coding (ECC) is used to produce the parity bits for the improvement of the robustness of constellation estimation and bit-error rate performance. The error bounds of constellation estimation are derived. Simulation results show that the proposed algorithm can improve the transmission efficiency by at most 50% and 25% compared with the conventional BPSK and QPSK respectively in Rayleigh channel while still maintaining almost the same or even better BER performance as conventional BPSK and QPSK.