Adaptive Prediction of Channels with Sparse Features in OFDM Systems

Adaptive Prediction of Channels with Sparse Features in OFDM Systems

A time domain channel prediction method exploiting features of sparse channel is proposed for orthogonal frequency division multiplexing (OFDM) systems. The proposed predictor operates in the time domain on each channel tap and separates the negligible taps from significant channel taps before perfo...

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Main Authors: Changwei Lv, Shujuan Hou, Wenbo Mei
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2013/649602
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spelling doaj-6b2b1abf86594a548794d0e02f0a64222020-11-24T23:25:46ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/649602649602Adaptive Prediction of Channels with Sparse Features in OFDM SystemsChangwei Lv0Shujuan Hou1Wenbo Mei2School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Information and Electronics, Beijing Institute of Technology, Beijing 100081, ChinaA time domain channel prediction method exploiting features of sparse channel is proposed for orthogonal frequency division multiplexing (OFDM) systems. The proposed predictor operates in the time domain on each channel tap and separates the negligible taps from significant channel taps before performing prediction. We also compare the proposed prediction method with the classical frequency domain method realized at each OFDM subcarrier and demonstrate that our method increases the prediction accuracy and reduces the computational complexity. Simulations on the physical channel model verify the performance of the proposed method.http://dx.doi.org/10.1155/2013/649602
collection DOAJ
language English
format Article
sources DOAJ
author Changwei Lv
Shujuan Hou
Wenbo Mei
spellingShingle Changwei Lv
Shujuan Hou
Wenbo Mei
Adaptive Prediction of Channels with Sparse Features in OFDM Systems
International Journal of Antennas and Propagation
author_facet Changwei Lv
Shujuan Hou
Wenbo Mei
author_sort Changwei Lv
title Adaptive Prediction of Channels with Sparse Features in OFDM Systems
title_short Adaptive Prediction of Channels with Sparse Features in OFDM Systems
title_full Adaptive Prediction of Channels with Sparse Features in OFDM Systems
title_fullStr Adaptive Prediction of Channels with Sparse Features in OFDM Systems
title_full_unstemmed Adaptive Prediction of Channels with Sparse Features in OFDM Systems
title_sort adaptive prediction of channels with sparse features in ofdm systems
publisher Hindawi Limited
series International Journal of Antennas and Propagation
issn 1687-5869
1687-5877
publishDate 2013-01-01
description A time domain channel prediction method exploiting features of sparse channel is proposed for orthogonal frequency division multiplexing (OFDM) systems. The proposed predictor operates in the time domain on each channel tap and separates the negligible taps from significant channel taps before performing prediction. We also compare the proposed prediction method with the classical frequency domain method realized at each OFDM subcarrier and demonstrate that our method increases the prediction accuracy and reduces the computational complexity. Simulations on the physical channel model verify the performance of the proposed method.
url http://dx.doi.org/10.1155/2013/649602
work_keys_str_mv AT changweilv adaptivepredictionofchannelswithsparsefeaturesinofdmsystems
AT shujuanhou adaptivepredictionofchannelswithsparsefeaturesinofdmsystems
AT wenbomei adaptivepredictionofchannelswithsparsefeaturesinofdmsystems
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