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Novel Channel Estimation Method in Fast Fading Channels Applied to LTE-Advanced  

Malik, Saransh (School of Electronics & Computer Engineering Chonnam National University)
Portugal, Sherlie (School of Electronics & Computer Engineering Chonnam National University)
Moon, Sang-Mi (School of Electronics & Computer Engineering Chonnam National University)
Kim, Bo-Ra (School of Electronics & Computer Engineering Chonnam National University)
Kim, Cheol-Sung (School of Electronics & Computer Engineering Chonnam National University)
Hwang, In-Tae (School of Electronics & Computer Engineering Chonnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.49, no.5, 2012 , pp. 51-58 More about this Journal
Abstract
Accurate transmission and estimation of the channel statistics affected by high Doppler spread is one of the main issues of concern for the latest and future mobile communication systems. Therefore, it is important to research in novel channel estimation techniques that overcome the limitations of conventional methods. In this paper, we propose a novel channel estimation method that, after a simple estimation in the first OFDM symbol, uses Kalman filter to predict the channel in the rest of OFDM symbols with pilot subcarriers. Our method is designed considering the lattice-type arrangement of pilot subcarriers in LTE-Advanced, since most of the studies so far focus on block-type or comb-type pilot arrangements. In addition, to optimize the results, we use the filtering of channel impulse response and Wiener Filter for the estimation of the channel frequency response in the rest of the subcarriers.
Keywords
Channel Estimation; OFDM; LTE-Advanced;
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  • Reference
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