OFDM Channel Estimation in the Presence of Receiver I/Q Imbalance and CFO Using Pilot Symbols

Yuan-Hwui CHUNG; See-May PHOONG

doi:10.1587/transcom.E95.B.531

OFDM Channel Estimation in the Presence of Receiver I/Q Imbalance and CFO Using Pilot Symbols

Yuan-Hwui CHUNG, See-May PHOONG

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In this paper, we study the channel estimation in the presence of the receiver in-phase and quadrature-phase (I/Q) imbalance and carrier frequency offset (CFO) for orthogonal frequency division multiplexing (OFDM) systems using pilot symbols. The concept of channel residual energy (CRE) [9] is used to solve the joint estimation problem. By minimizing the CRE, we can jointly estimate the receiver I/Q, CFO and channel response using the pilot symbols in one OFDM block. Simulation results show that the proposed method can provide good performance and also works well when applied to the terrestrial digital video broadcasting (DVB-T) systems.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.2 pp.531-539

Publication Date: 2012/02/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.531

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Yuan-Hwui CHUNG, See-May PHOONG, "OFDM Channel Estimation in the Presence of Receiver I/Q Imbalance and CFO Using Pilot Symbols" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 2, pp. 531-539, February 2012, doi: 10.1587/transcom.E95.B.531.
Abstract: In this paper, we study the channel estimation in the presence of the receiver in-phase and quadrature-phase (I/Q) imbalance and carrier frequency offset (CFO) for orthogonal frequency division multiplexing (OFDM) systems using pilot symbols. The concept of channel residual energy (CRE) [9] is used to solve the joint estimation problem. By minimizing the CRE, we can jointly estimate the receiver I/Q, CFO and channel response using the pilot symbols in one OFDM block. Simulation results show that the proposed method can provide good performance and also works well when applied to the terrestrial digital video broadcasting (DVB-T) systems.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.531/_p

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@ARTICLE{e95-b_2_531,
author={Yuan-Hwui CHUNG, See-May PHOONG, },
journal={IEICE TRANSACTIONS on Communications},
title={OFDM Channel Estimation in the Presence of Receiver I/Q Imbalance and CFO Using Pilot Symbols},
year={2012},
volume={E95-B},
number={2},
pages={531-539},
abstract={In this paper, we study the channel estimation in the presence of the receiver in-phase and quadrature-phase (I/Q) imbalance and carrier frequency offset (CFO) for orthogonal frequency division multiplexing (OFDM) systems using pilot symbols. The concept of channel residual energy (CRE) [9] is used to solve the joint estimation problem. By minimizing the CRE, we can jointly estimate the receiver I/Q, CFO and channel response using the pilot symbols in one OFDM block. Simulation results show that the proposed method can provide good performance and also works well when applied to the terrestrial digital video broadcasting (DVB-T) systems.},
keywords={},
doi={10.1587/transcom.E95.B.531},
ISSN={1745-1345},
month={February},}

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TY - JOUR
TI - OFDM Channel Estimation in the Presence of Receiver I/Q Imbalance and CFO Using Pilot Symbols
T2 - IEICE TRANSACTIONS on Communications
SP - 531
EP - 539
AU - Yuan-Hwui CHUNG
AU - See-May PHOONG
PY - 2012
DO - 10.1587/transcom.E95.B.531
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2012
AB - In this paper, we study the channel estimation in the presence of the receiver in-phase and quadrature-phase (I/Q) imbalance and carrier frequency offset (CFO) for orthogonal frequency division multiplexing (OFDM) systems using pilot symbols. The concept of channel residual energy (CRE) [9] is used to solve the joint estimation problem. By minimizing the CRE, we can jointly estimate the receiver I/Q, CFO and channel response using the pilot symbols in one OFDM block. Simulation results show that the proposed method can provide good performance and also works well when applied to the terrestrial digital video broadcasting (DVB-T) systems.
ER -