Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers

Research Article

A Practical Performance Analysis of CRS-Aided Channel Estimation Algorithms for LTE Downlink System

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  • @INPROCEEDINGS{10.1007/978-3-642-30493-4_30,
        author={Yannan Yuan and Lianfen Huang and Ruogui Xiao and Xin Qi and Min Huang},
        title={A Practical Performance Analysis of CRS-Aided Channel Estimation Algorithms for LTE Downlink System},
        proceedings={Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers},
        proceedings_a={WICON},
        year={2012},
        month={10},
        keywords={3GPP LTE channel estimation CRS-aided channel estimation Wiener interpolation},
        doi={10.1007/978-3-642-30493-4_30}
    }
    
  • Yannan Yuan
    Lianfen Huang
    Ruogui Xiao
    Xin Qi
    Min Huang
    Year: 2012
    A Practical Performance Analysis of CRS-Aided Channel Estimation Algorithms for LTE Downlink System
    WICON
    Springer
    DOI: 10.1007/978-3-642-30493-4_30
Yannan Yuan1, Lianfen Huang1,*, Ruogui Xiao1, Xin Qi1, Min Huang1
  • 1: Xiamen University
*Contact email: lfhuang@xmu.edu.cn

Abstract

Channel estimation algorithms are employed in 3GPP Long Term Evolution (LTE) downlink system to help with coherent demodulation. Several CRS-aided channel estimation algorithms over multipath Rayleigh fading channel have been investigated in this paper. Based on theoretical analysis and simulation, Wiener interpolation channel estimator is proposed for LTE downlink system. In consideration of practical implementation and universality for different channels, we propose that CRSs in Wiener interpolation should be contained in the time window of 10e second as well as in the frequency window of two adjacent resource blocks, which symmetrically distribute around the current estimated resource block in frequency domain.