5th International ICST Conference on Communications and Networking in China

Research Article

Bit-interleaved Doppler diversity for LTE-Advanced system

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  • @INPROCEEDINGS{10.4108/chinacom.2010.45,
    author={Xiaoping Zhou and Hui Zhao and Yang Liu and Wenbo Wang and Bin Wu},
    title={Bit-interleaved Doppler diversity for LTE-Advanced system},
    proceedings={5th International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2011},
    month={1},
    keywords={Channel estimation Diversity methods Doppler effect Encoding OFDM Time-varying channels Wireless communication},
    doi={10.4108/chinacom.2010.45}
}
  • Xiaoping Zhou
    Hui Zhao
    Yang Liu
    Wenbo Wang
    Bin Wu
    Year: 2011
    Bit-interleaved Doppler diversity for LTE-Advanced system
    CHINACOM
    ICST
    DOI: 10.4108/chinacom.2010.45
Xiaoping Zhou1,*, Hui Zhao1, Yang Liu1, Wenbo Wang1, Bin Wu2
  • 1: Wireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts &Telecommunications, Beijing China
  • 2: Institute of Microelectronics of Chinese Academy of Sciences
*Contact email: zxpzcy@gmail.com

Abstract

Time-varying channel degrades the performance of LTE-Advanced system due to the Intercarrier Interference (ICI) and imperfect channel estimation. In this paper, we propose a practical strategy by bit-interleaving preprocessing in transmitting part for Doppler diversity in high-speed scenario. Time-varying channel frequency response and effect of coding rate to this algorithm are analyzed. In addition, to evaluate the performance of the proposed strategy, it is implemented into LTE-A system and simulated. The results show that the strategy can achieve significant performance enhancement in high-speed scenario.

Keywords
Channel estimation Diversity methods Doppler effect Encoding OFDM Time-varying channels Wireless communication
Published
2011-01-10
Publisher
IEEE
http://dx.doi.org/10.4108/chinacom.2010.45
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