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

  • Yannan Yuan
  • Lianfen Huang
  • Ruogui Xiao
  • Xin Qi
  • Min Huang
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 98)

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− 3 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.

Keywords

3GPP LTE channel estimation CRS-aided channel estimation Wiener interpolation 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2012

Authors and Affiliations

  • Yannan Yuan
    • 1
  • Lianfen Huang
    • 1
  • Ruogui Xiao
    • 1
  • Xin Qi
    • 1
  • Min Huang
    • 1
  1. 1.Department of Communication EngineeringXiamen UniversityP.R. China

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