IEICE TRANSACTIONS on Communications
Channel Correlation Estimation Exploiting Pilots for an OFDM System with a Comb-Type Pilot Pattern
Summary :
Two channel correlation estimation (CCE) schemes exploiting pilots are presented for an OFDM system with a comb-type pilot pattern under the assumption that there exist virtual subcarriers in the OFDM block. Whereas the first scheme is designed based on the conventional regularized-least square (LS) approach, the second scheme is designed by a newly devised technique based on LS. As the second scheme removes the necessity of computing the matrix inverse by making the minimum eigenvalue of the inversed matrix positive, it leads to reduced implementation complexity and improved performance. It is shown by simulation that the proposed CCE schemes substantially enhance the mean equare error and symbol error rate performances of the MMSE based channel estimation by providing more accurate channel correlation information.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E97-B No.1 pp.164-170
- Publication Date
- 2014/01/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E97.B.164
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Eunchul YOON
Konkuk University
Suhan CHOI
Dankook University
Unil YUN
Sejong University
Keyword
Latest Issue
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Eunchul YOON, Suhan CHOI, Unil YUN, "Channel Correlation Estimation Exploiting Pilots for an OFDM System with a Comb-Type Pilot Pattern" in IEICE TRANSACTIONS on Communications,
vol. E97-B, no. 1, pp. 164-170, January 2014, doi: 10.1587/transcom.E97.B.164.
Abstract: Two channel correlation estimation (CCE) schemes exploiting pilots are presented for an OFDM system with a comb-type pilot pattern under the assumption that there exist virtual subcarriers in the OFDM block. Whereas the first scheme is designed based on the conventional regularized-least square (LS) approach, the second scheme is designed by a newly devised technique based on LS. As the second scheme removes the necessity of computing the matrix inverse by making the minimum eigenvalue of the inversed matrix positive, it leads to reduced implementation complexity and improved performance. It is shown by simulation that the proposed CCE schemes substantially enhance the mean equare error and symbol error rate performances of the MMSE based channel estimation by providing more accurate channel correlation information.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.164/_p
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@ARTICLE{e97-b_1_164,
author={Eunchul YOON, Suhan CHOI, Unil YUN, },
journal={IEICE TRANSACTIONS on Communications},
title={Channel Correlation Estimation Exploiting Pilots for an OFDM System with a Comb-Type Pilot Pattern},
year={2014},
volume={E97-B},
number={1},
pages={164-170},
abstract={Two channel correlation estimation (CCE) schemes exploiting pilots are presented for an OFDM system with a comb-type pilot pattern under the assumption that there exist virtual subcarriers in the OFDM block. Whereas the first scheme is designed based on the conventional regularized-least square (LS) approach, the second scheme is designed by a newly devised technique based on LS. As the second scheme removes the necessity of computing the matrix inverse by making the minimum eigenvalue of the inversed matrix positive, it leads to reduced implementation complexity and improved performance. It is shown by simulation that the proposed CCE schemes substantially enhance the mean equare error and symbol error rate performances of the MMSE based channel estimation by providing more accurate channel correlation information.},
keywords={},
doi={10.1587/transcom.E97.B.164},
ISSN={1745-1345},
month={January},}
Copy
TY - JOUR
TI - Channel Correlation Estimation Exploiting Pilots for an OFDM System with a Comb-Type Pilot Pattern
T2 - IEICE TRANSACTIONS on Communications
SP - 164
EP - 170
AU - Eunchul YOON
AU - Suhan CHOI
AU - Unil YUN
PY - 2014
DO - 10.1587/transcom.E97.B.164
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2014
AB - Two channel correlation estimation (CCE) schemes exploiting pilots are presented for an OFDM system with a comb-type pilot pattern under the assumption that there exist virtual subcarriers in the OFDM block. Whereas the first scheme is designed based on the conventional regularized-least square (LS) approach, the second scheme is designed by a newly devised technique based on LS. As the second scheme removes the necessity of computing the matrix inverse by making the minimum eigenvalue of the inversed matrix positive, it leads to reduced implementation complexity and improved performance. It is shown by simulation that the proposed CCE schemes substantially enhance the mean equare error and symbol error rate performances of the MMSE based channel estimation by providing more accurate channel correlation information.
ER -
English
