One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) systems is their vulnerability to synchronization errors. To remedy the inter-carrier interference (ICI) effect caused by carrier frequency offset (CFO) estimation errors, this paper proposes a weighted linear parallel ICI cancellation (WLPICIC) equalizer. The optimal weights in the WLPICIC scheme are derived in closed-form expressions by maximizing the average signal-to-interference ratio (SIR) at the WLPICIC output of each sub-carrier. The simulation results show that the WLPICIC equalizer significantly improves the performance of OFDM systems with frequency estimation errors in both AWGN channels and frequency selective fading channels.
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Wei-Wen HU, Chih-Peng LI, "An Efficient Inter-Carrier Interference Cancellation Scheme for OFDM Systems with Frequency Estimation Errors" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 12, pp. 3600-3605, December 2010, doi: 10.1587/transcom.E93.B.3600.
Abstract: One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) systems is their vulnerability to synchronization errors. To remedy the inter-carrier interference (ICI) effect caused by carrier frequency offset (CFO) estimation errors, this paper proposes a weighted linear parallel ICI cancellation (WLPICIC) equalizer. The optimal weights in the WLPICIC scheme are derived in closed-form expressions by maximizing the average signal-to-interference ratio (SIR) at the WLPICIC output of each sub-carrier. The simulation results show that the WLPICIC equalizer significantly improves the performance of OFDM systems with frequency estimation errors in both AWGN channels and frequency selective fading channels.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.3600/_p
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@ARTICLE{e93-b_12_3600,
author={Wei-Wen HU, Chih-Peng LI, },
journal={IEICE TRANSACTIONS on Communications},
title={An Efficient Inter-Carrier Interference Cancellation Scheme for OFDM Systems with Frequency Estimation Errors},
year={2010},
volume={E93-B},
number={12},
pages={3600-3605},
abstract={One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) systems is their vulnerability to synchronization errors. To remedy the inter-carrier interference (ICI) effect caused by carrier frequency offset (CFO) estimation errors, this paper proposes a weighted linear parallel ICI cancellation (WLPICIC) equalizer. The optimal weights in the WLPICIC scheme are derived in closed-form expressions by maximizing the average signal-to-interference ratio (SIR) at the WLPICIC output of each sub-carrier. The simulation results show that the WLPICIC equalizer significantly improves the performance of OFDM systems with frequency estimation errors in both AWGN channels and frequency selective fading channels.},
keywords={},
doi={10.1587/transcom.E93.B.3600},
ISSN={1745-1345},
month={December},}
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TY - JOUR
TI - An Efficient Inter-Carrier Interference Cancellation Scheme for OFDM Systems with Frequency Estimation Errors
T2 - IEICE TRANSACTIONS on Communications
SP - 3600
EP - 3605
AU - Wei-Wen HU
AU - Chih-Peng LI
PY - 2010
DO - 10.1587/transcom.E93.B.3600
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2010
AB - One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) systems is their vulnerability to synchronization errors. To remedy the inter-carrier interference (ICI) effect caused by carrier frequency offset (CFO) estimation errors, this paper proposes a weighted linear parallel ICI cancellation (WLPICIC) equalizer. The optimal weights in the WLPICIC scheme are derived in closed-form expressions by maximizing the average signal-to-interference ratio (SIR) at the WLPICIC output of each sub-carrier. The simulation results show that the WLPICIC equalizer significantly improves the performance of OFDM systems with frequency estimation errors in both AWGN channels and frequency selective fading channels.
ER -