DocumentCode :
1753420
Title :
A fast and accurate ICI cancellation with feedback correction for the LTE-advanced uplink system
Author :
Jeong, Haeseong ; Ryu, Heung-Gyoon
Author_Institution :
Dept. of Electron. Eng., Chungbuk Nat. Univ., Cheongju, South Korea
fYear :
2011
fDate :
13-16 Feb. 2011
Firstpage :
138
Lastpage :
142
Abstract :
In this paper, we propose a fast and accurate ICI cancellation with feedback correction algorithm against phase noise and frequency offset for LTE-advanced uplink system. The purpose of this paper is to describe a method to effectively compensate for ICI. In this paper, we use a fast ICI compensation algorithm, feedback correction algorithm in order to compensate ICI with adaptive channel estimation. We reduce computational complexity by decreasing overlapping computation or unnecessary computation. Therefore, this algorithm is feasible for use in systems requiring fast speed. Also, we can reduce burden of equalizer by using feedback correction algorithm. In order to cancel phase noise and carrier frequency offset, we adapt comb type pilot because the characteristic of phase noise is random. We use an adaptive channel estimation method in order to effectively compensate ICI for multipath channel. The BER performance of the proposed method is better by about 0.3dB than the conventional method in the Vehicular A channel.
Keywords :
Long Term Evolution; adaptive estimation; channel estimation; computational complexity; error statistics; intercarrier interference; interference suppression; phase noise; ICI cancellation; LTE-advanced uplink system; adaptive channel estimation; bit error rate; carrier frequency offset; comb type pilot; computational complexity; feedback correction; intercarrier interference; phase noise; vehicular A channel; AWGN; Bit error rate; Channel estimation; Computational complexity; Equalizers; Multipath channels; Phase noise; Carrier frequency offset; ICI cancellation; LTE-advanced; Phase noise; SC-FDMA;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Communication Technology (ICACT), 2011 13th International Conference on
Conference_Location :
Seoul
ISSN :
1738-9445
Print_ISBN :
978-1-4244-8830-8
Type :
conf
Filename :
5745763
Link To Document :
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