GSC-based frequency-domain equalizer for CP-free OFDM systems

Chih Yuan Lin; Jwo-Yuh Wu; Ta-Sung Lee

doi:10.1109/ICC.2005.1494524

GSC-based frequency-domain equalizer for CP-free OFDM systems

Chih Yuan Lin^*, Jwo-Yuh Wu, Ta-Sung Lee

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

A multi-antenna generalized sidelobe canceller (GSC) based equalizer for inter-symbol interference (ISI) suppression is proposed for high-rate single-input multiple-output (SIMO) orthogonal frequency division multiplexing (OFDM) systems without cyclic prefix (CP). The proposed method relies on the block representation of the OFDM transmission and exploits the ISI subspace structure in the associated multi-antenna system model. A computationally efficient partial adaptivity (PA) implementation of the GSC equalizer is also provided for reducing the receiver complexity. Simulation results show that the proposed GSC-based solution yields an equalization performance almost identical to that obtained by the conventional CP-based OFDM system and is highly resistant to the increase of channel delay spread.

Original language	English
Pages (from-to)	1132-1136
Number of pages	5
Journal	IEEE International Conference on Communications
Volume	2
DOIs	https://doi.org/10.1109/ICC.2005.1494524
State	Published - 2005
Event	2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of Duration: 16 May 2005 → 20 May 2005

Keywords

Generalized sidelobe canceller
ISI suppression
OFDM
Partial adaptivity

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10.1109/ICC.2005.1494524

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title = "GSC-based frequency-domain equalizer for CP-free OFDM systems",

abstract = "A multi-antenna generalized sidelobe canceller (GSC) based equalizer for inter-symbol interference (ISI) suppression is proposed for high-rate single-input multiple-output (SIMO) orthogonal frequency division multiplexing (OFDM) systems without cyclic prefix (CP). The proposed method relies on the block representation of the OFDM transmission and exploits the ISI subspace structure in the associated multi-antenna system model. A computationally efficient partial adaptivity (PA) implementation of the GSC equalizer is also provided for reducing the receiver complexity. Simulation results show that the proposed GSC-based solution yields an equalization performance almost identical to that obtained by the conventional CP-based OFDM system and is highly resistant to the increase of channel delay spread.",

keywords = "Generalized sidelobe canceller, ISI suppression, OFDM, Partial adaptivity",

author = "Lin, {Chih Yuan} and Jwo-Yuh Wu and Ta-Sung Lee",

year = "2005",

doi = "10.1109/ICC.2005.1494524",

language = "English",

volume = "2",

pages = "1132--1136",

journal = "IEEE International Conference on Communications",

issn = "0536-1486",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2005 IEEE International Conference on Communications, ICC 2005 ; Conference date: 16-05-2005 Through 20-05-2005",

}

TY - JOUR

T1 - GSC-based frequency-domain equalizer for CP-free OFDM systems

AU - Lin, Chih Yuan

AU - Wu, Jwo-Yuh

AU - Lee, Ta-Sung

PY - 2005

Y1 - 2005

N2 - A multi-antenna generalized sidelobe canceller (GSC) based equalizer for inter-symbol interference (ISI) suppression is proposed for high-rate single-input multiple-output (SIMO) orthogonal frequency division multiplexing (OFDM) systems without cyclic prefix (CP). The proposed method relies on the block representation of the OFDM transmission and exploits the ISI subspace structure in the associated multi-antenna system model. A computationally efficient partial adaptivity (PA) implementation of the GSC equalizer is also provided for reducing the receiver complexity. Simulation results show that the proposed GSC-based solution yields an equalization performance almost identical to that obtained by the conventional CP-based OFDM system and is highly resistant to the increase of channel delay spread.

AB - A multi-antenna generalized sidelobe canceller (GSC) based equalizer for inter-symbol interference (ISI) suppression is proposed for high-rate single-input multiple-output (SIMO) orthogonal frequency division multiplexing (OFDM) systems without cyclic prefix (CP). The proposed method relies on the block representation of the OFDM transmission and exploits the ISI subspace structure in the associated multi-antenna system model. A computationally efficient partial adaptivity (PA) implementation of the GSC equalizer is also provided for reducing the receiver complexity. Simulation results show that the proposed GSC-based solution yields an equalization performance almost identical to that obtained by the conventional CP-based OFDM system and is highly resistant to the increase of channel delay spread.

KW - Generalized sidelobe canceller

KW - ISI suppression

KW - OFDM

KW - Partial adaptivity

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U2 - 10.1109/ICC.2005.1494524

DO - 10.1109/ICC.2005.1494524

M3 - Conference article

AN - SCOPUS:24344459881

SN - 0536-1486

VL - 2

SP - 1132

EP - 1136

JO - IEEE International Conference on Communications

JF - IEEE International Conference on Communications

T2 - 2005 IEEE International Conference on Communications, ICC 2005

Y2 - 16 May 2005 through 20 May 2005

ER -

GSC-based frequency-domain equalizer for CP-free OFDM systems

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Keywords

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