基于特定导频OFDM信道估计的研究

doi:10.3969/j.issn.1000-0801.2011.06.023

Abstract

Abstract:

In OFDM systems，accurate channel estimation is the key to against the effect of the interchannel interference in a multipath Rayleigh fading channel.In this paper，a novel channel estimation method for mobile OFDM systems is proposed by using the interpolation technique based on Catmull-Rom（CR）Spline function.Using CR Spline function interpolation method to design a specific pilot structure，This leads to a CR Spline function form for channel estimation.This method can estimation the channel fading envelope with a few pilot.The validity of the proposed pilot structure and channel estimation with CR Spline function is demonstrated by computer simulations.

Key words: channel estimation, OFDM, ICI, fast fading, CR Spline, doppler shift

Bin Guo,Dali Liu,I Gasumba. Study on Channel Estimation for OFDM Systems Based on Specific Pilots[J]. Telecommunications Science, 2011, 27(6): 89-92.

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References 17

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Study on Channel Estimation for OFDM Systems Based on Specific Pilots

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