BEM Channel Estimation for OFDM System in Fast Time-Varying Channel

Fei LI; Zhizhong DING; Yu WANG; Jie LI; Zhi LIU

doi:10.1587/transcom.2016EBP3200

BEM Channel Estimation for OFDM System in Fast Time-Varying Channel

Fei LI, Zhizhong DING, Yu WANG, Jie LI, Zhi LIU

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In this paper, the problem of channel estimation in orthogonal frequency-division multiplexing systems over fast time-varying channel is investigated by using a Basis Expansion Model (BEM). Regarding the effects of the Gibbs phenomenon in the BEM, we propose a new method to alleviate it and reduce the modeling error. Theoretical analysis and detail comparison results show that the proposed BEM method can provide improved modeling error compared with other BEMs such as CE-BEM and GCE-BEM. In addition, instead of using the frequency-domain Kronecker delta structure, a new clustered pilot structure is proposed to enhance the estimation performance further. The new clustered pilot structure can effectively reduce the inter-carrier interference especially in the case of high Doppler spreads.

Publication: IEICE TRANSACTIONS on Communications Vol.E100-B No.8 pp.1462-1471

Publication Date: 2017/08/01

Publicized: 2017/02/09

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2016EBP3200

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

Authors

Fei LI
  Hefei University of Technology
Zhizhong DING
  Hefei University of Technology
Yu WANG
  Hefei University of Technology
Jie LI
  Hefei University of Technology
Zhi LIU
  Waseda University

Keyword

channel estimation, OFDM, time-varying channel, basis expansion model, clustered comb pilot

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Fei LI, Zhizhong DING, Yu WANG, Jie LI, Zhi LIU, "BEM Channel Estimation for OFDM System in Fast Time-Varying Channel" in IEICE TRANSACTIONS on Communications, vol. E100-B, no. 8, pp. 1462-1471, August 2017, doi: 10.1587/transcom.2016EBP3200.
Abstract: In this paper, the problem of channel estimation in orthogonal frequency-division multiplexing systems over fast time-varying channel is investigated by using a Basis Expansion Model (BEM). Regarding the effects of the Gibbs phenomenon in the BEM, we propose a new method to alleviate it and reduce the modeling error. Theoretical analysis and detail comparison results show that the proposed BEM method can provide improved modeling error compared with other BEMs such as CE-BEM and GCE-BEM. In addition, instead of using the frequency-domain Kronecker delta structure, a new clustered pilot structure is proposed to enhance the estimation performance further. The new clustered pilot structure can effectively reduce the inter-carrier interference especially in the case of high Doppler spreads.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.2016EBP3200/_p

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@ARTICLE{e100-b_8_1462,
author={Fei LI, Zhizhong DING, Yu WANG, Jie LI, Zhi LIU, },
journal={IEICE TRANSACTIONS on Communications},
title={BEM Channel Estimation for OFDM System in Fast Time-Varying Channel},
year={2017},
volume={E100-B},
number={8},
pages={1462-1471},
abstract={In this paper, the problem of channel estimation in orthogonal frequency-division multiplexing systems over fast time-varying channel is investigated by using a Basis Expansion Model (BEM). Regarding the effects of the Gibbs phenomenon in the BEM, we propose a new method to alleviate it and reduce the modeling error. Theoretical analysis and detail comparison results show that the proposed BEM method can provide improved modeling error compared with other BEMs such as CE-BEM and GCE-BEM. In addition, instead of using the frequency-domain Kronecker delta structure, a new clustered pilot structure is proposed to enhance the estimation performance further. The new clustered pilot structure can effectively reduce the inter-carrier interference especially in the case of high Doppler spreads.},
keywords={},
doi={10.1587/transcom.2016EBP3200},
ISSN={1745-1345},
month={August},}

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TY - JOUR
TI - BEM Channel Estimation for OFDM System in Fast Time-Varying Channel
T2 - IEICE TRANSACTIONS on Communications
SP - 1462
EP - 1471
AU - Fei LI
AU - Zhizhong DING
AU - Yu WANG
AU - Jie LI
AU - Zhi LIU
PY - 2017
DO - 10.1587/transcom.2016EBP3200
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E100-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2017
AB - In this paper, the problem of channel estimation in orthogonal frequency-division multiplexing systems over fast time-varying channel is investigated by using a Basis Expansion Model (BEM). Regarding the effects of the Gibbs phenomenon in the BEM, we propose a new method to alleviate it and reduce the modeling error. Theoretical analysis and detail comparison results show that the proposed BEM method can provide improved modeling error compared with other BEMs such as CE-BEM and GCE-BEM. In addition, instead of using the frequency-domain Kronecker delta structure, a new clustered pilot structure is proposed to enhance the estimation performance further. The new clustered pilot structure can effectively reduce the inter-carrier interference especially in the case of high Doppler spreads.
ER -