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A New DCT based Channel Estimation Algorithm for OFDM Systems

by Antony Nycil P.a., Anoop E.g.
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 58 - Number 16
Year of Publication: 2012
Authors: Antony Nycil P.a., Anoop E.g.
10.5120/9367-3823

Antony Nycil P.a., Anoop E.g. . A New DCT based Channel Estimation Algorithm for OFDM Systems. International Journal of Computer Applications. 58, 16 ( November 2012), 26-30. DOI=10.5120/9367-3823

@article{ 10.5120/9367-3823,
author = { Antony Nycil P.a., Anoop E.g. },
title = { A New DCT based Channel Estimation Algorithm for OFDM Systems },
journal = { International Journal of Computer Applications },
issue_date = { November 2012 },
volume = { 58 },
number = { 16 },
month = { November },
year = { 2012 },
issn = { 0975-8887 },
pages = { 26-30 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume58/number16/9367-3823/ },
doi = { 10.5120/9367-3823 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:02:41.766965+05:30
%A Antony Nycil P.a.
%A Anoop E.g.
%T A New DCT based Channel Estimation Algorithm for OFDM Systems
%J International Journal of Computer Applications
%@ 0975-8887
%V 58
%N 16
%P 26-30
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

This paper deals with the estimation of the channel in orthogonal frequency division multiplexed systems. In this paper, a new DCT-based pilot-symbol-aided channel estimation method is proposed. The energy leakage in multipath channel with non-sample-spaced time delays is eliminated here. The proposed method uses symmetric property to extend the LS estimate in frequency domain to remove the effects of non-sample spaced time delays. The computer simulation results demonstrate that the new method can reduce the leakage energy efficiently, and the performance of the new channel estimation method is better than the LS and improved DFT algorithm.

References
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  8. H. Kobayaki and k. Mori. "Proposal of OFDM channel estimation method using discrete cosine transform". Personal, Indoor and Mobile Radio Communications, 2004. Vol. 3 . Page(s):1797 – 1801.
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Index Terms

Computer Science
Information Sciences

Keywords

channel estimation OFDM energy leakage improved DFT DCT

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