New equalization approach for OFDM over dispersive and rapidly time varying channel

J.P.M.G. Linnartz; A. Gorokhov

doi:10.1109/PIMRC.2000.881643

New equalization approach for OFDM over dispersive and rapidly time varying channel

J.P.M.G. Linnartz, A. Gorokhov

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

42 Citations (Scopus)

Abstract

The paper proposes and analyses a new receiver structure to mitigate the effect of Doppler on the reception of OFDM signals. A Discrete-Frequency channel representation is developed for the link between the input of the transmit I-FFT and the output of the receive FFT. It is based on a Taylor expansion of the time variations of the received subcarrier amplitudes. The model realistically addresses the correlation of fading at neighboring subcarriers. We study a new type of receiver which estimates not only amplitudes but also derivatives of subcarriers amplitudes. An adaptive MMSE filter is proposed to cancel the Intercarrier Interference (ICI) resulting from Doppler. This results in a substantial improvement of the link performance.

Original language	English
Title of host publication	11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	1375-1379
Number of pages	5
Volume	2
ISBN (Print)	0-7803-6463-5
DOIs	https://doi.org/10.1109/PIMRC.2000.881643
Publication status	Published - 1 Dec 2000
Externally published	Yes
Event	11th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2000 - London, United Kingdom Duration: 18 Sept 2000 → 21 Sept 2000 Conference number: 11

Conference

Conference	11th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2000
Abbreviated title	PIMRC 2000
Country/Territory	United Kingdom
City	London
Period	18/09/00 → 21/09/00

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10.1109/PIMRC.2000.881643

Cite this

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title = "New equalization approach for OFDM over dispersive and rapidly time varying channel",

abstract = "The paper proposes and analyses a new receiver structure to mitigate the effect of Doppler on the reception of OFDM signals. A Discrete-Frequency channel representation is developed for the link between the input of the transmit I-FFT and the output of the receive FFT. It is based on a Taylor expansion of the time variations of the received subcarrier amplitudes. The model realistically addresses the correlation of fading at neighboring subcarriers. We study a new type of receiver which estimates not only amplitudes but also derivatives of subcarriers amplitudes. An adaptive MMSE filter is proposed to cancel the Intercarrier Interference (ICI) resulting from Doppler. This results in a substantial improvement of the link performance.",

author = "J.P.M.G. Linnartz and A. Gorokhov",

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publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

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Linnartz, JPMG & Gorokhov, A 2000, New equalization approach for OFDM over dispersive and rapidly time varying channel. in 11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings. vol. 2, Institute of Electrical and Electronics Engineers, Piscataway, pp. 1375-1379, 11th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2000, London, United Kingdom, 18/09/00. https://doi.org/10.1109/PIMRC.2000.881643

New equalization approach for OFDM over dispersive and rapidly time varying channel. / Linnartz, J.P.M.G.; Gorokhov, A.
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings. Vol. 2 Piscataway: Institute of Electrical and Electronics Engineers, 2000. p. 1375-1379.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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T1 - New equalization approach for OFDM over dispersive and rapidly time varying channel

AU - Linnartz, J.P.M.G.

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PY - 2000/12/1

Y1 - 2000/12/1

N2 - The paper proposes and analyses a new receiver structure to mitigate the effect of Doppler on the reception of OFDM signals. A Discrete-Frequency channel representation is developed for the link between the input of the transmit I-FFT and the output of the receive FFT. It is based on a Taylor expansion of the time variations of the received subcarrier amplitudes. The model realistically addresses the correlation of fading at neighboring subcarriers. We study a new type of receiver which estimates not only amplitudes but also derivatives of subcarriers amplitudes. An adaptive MMSE filter is proposed to cancel the Intercarrier Interference (ICI) resulting from Doppler. This results in a substantial improvement of the link performance.

AB - The paper proposes and analyses a new receiver structure to mitigate the effect of Doppler on the reception of OFDM signals. A Discrete-Frequency channel representation is developed for the link between the input of the transmit I-FFT and the output of the receive FFT. It is based on a Taylor expansion of the time variations of the received subcarrier amplitudes. The model realistically addresses the correlation of fading at neighboring subcarriers. We study a new type of receiver which estimates not only amplitudes but also derivatives of subcarriers amplitudes. An adaptive MMSE filter is proposed to cancel the Intercarrier Interference (ICI) resulting from Doppler. This results in a substantial improvement of the link performance.

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BT - 11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings

PB - Institute of Electrical and Electronics Engineers

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Y2 - 18 September 2000 through 21 September 2000

ER -

New equalization approach for OFDM over dispersive and rapidly time varying channel

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