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http://dx.doi.org/10.5515/KJKIEES.2011.22.1.030

A Fast ICI Suppression Algorithm with Adaptive Channel Estimation for the LTE-Advanced Uplink System  

Jeong, Hae-Seong (Department of Electronic Engineering, Chungbuk National University)
Ryu, Heung-Gyoon (Department of Electronic Engineering, Chungbuk National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.1, 2011 , pp. 30-37 More about this Journal
Abstract
In this paper, we propose a fast ICI suppression algorithm with adaptive channel estimation for the LTE-Advanced uplink system. In order to effectively remove phase noise and carrier frequency offset at time varying channel, we use the comb type pilot. The purpose is to improve performance by reducing computational complexity than conventional PNFS(Phase Noise & Frequency offset Suppression) algorithm. We reduce computational complexity by decreasing overlapping computation or unnecessary computation at conventional PNFS algorithm. Also, we propose an effective channel estimation method. We estimate and compensate multipath channel through the proposed adaptive channel estimation method. The BER performance of the proposed method is better about 0.5 dB than the conventional method at the Vehicular A channel.
Keywords
Inter-Carrier Interference; Phase Noise; Frequency Offset; ICI Suppression; LTE-Advanced;
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