Adaptive Coupling Method Based on Optimal Subcarrier Spacing for OFDM System

Yi WANG; Qianbin CHEN; Xing Zhe HOU; Hong TANG; Zufan ZHANG; Ken LONG

doi:10.1587/transcom.E96.B.360

Adaptive Coupling Method Based on Optimal Subcarrier Spacing for OFDM System

Yi WANG, Qianbin CHEN, Xing Zhe HOU, Hong TANG, Zufan ZHANG, Ken LONG

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Orthogonal frequency division multiplexing (OFDM) is very sensitive to the frequency errors caused by phase noise and Doppler shift. These errors will disturb the orthogonality among subcarriers and cause intercarrier interference (ICI). A simple method to combat ICI is proposed in this letter. The main idea is to map each data symbol onto a couple of subcarriers rather to a single subcarrier. Different from the conventional adjacent coupling and symmetric coupling methods, the frequency diversity can be utilized more efficiently by the proposed adaptive coupling method based on optimal subcarrier spacing. Numerical results show that our proposed method provides a robust signal-to-noise ratio (SNR) improvement over the conventional coupling methods.

Publication: IEICE TRANSACTIONS on Communications Vol.E96-B No.1 pp.360-362

Publication Date: 2013/01/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E96.B.360

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Yi WANG, Qianbin CHEN, Xing Zhe HOU, Hong TANG, Zufan ZHANG, Ken LONG, "Adaptive Coupling Method Based on Optimal Subcarrier Spacing for OFDM System" in IEICE TRANSACTIONS on Communications, vol. E96-B, no. 1, pp. 360-362, January 2013, doi: 10.1587/transcom.E96.B.360.
Abstract: Orthogonal frequency division multiplexing (OFDM) is very sensitive to the frequency errors caused by phase noise and Doppler shift. These errors will disturb the orthogonality among subcarriers and cause intercarrier interference (ICI). A simple method to combat ICI is proposed in this letter. The main idea is to map each data symbol onto a couple of subcarriers rather to a single subcarrier. Different from the conventional adjacent coupling and symmetric coupling methods, the frequency diversity can be utilized more efficiently by the proposed adaptive coupling method based on optimal subcarrier spacing. Numerical results show that our proposed method provides a robust signal-to-noise ratio (SNR) improvement over the conventional coupling methods.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E96.B.360/_p

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@ARTICLE{e96-b_1_360,
author={Yi WANG, Qianbin CHEN, Xing Zhe HOU, Hong TANG, Zufan ZHANG, Ken LONG, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Coupling Method Based on Optimal Subcarrier Spacing for OFDM System},
year={2013},
volume={E96-B},
number={1},
pages={360-362},
abstract={Orthogonal frequency division multiplexing (OFDM) is very sensitive to the frequency errors caused by phase noise and Doppler shift. These errors will disturb the orthogonality among subcarriers and cause intercarrier interference (ICI). A simple method to combat ICI is proposed in this letter. The main idea is to map each data symbol onto a couple of subcarriers rather to a single subcarrier. Different from the conventional adjacent coupling and symmetric coupling methods, the frequency diversity can be utilized more efficiently by the proposed adaptive coupling method based on optimal subcarrier spacing. Numerical results show that our proposed method provides a robust signal-to-noise ratio (SNR) improvement over the conventional coupling methods.},
keywords={},
doi={10.1587/transcom.E96.B.360},
ISSN={1745-1345},
month={January},}

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TY - JOUR
TI - Adaptive Coupling Method Based on Optimal Subcarrier Spacing for OFDM System
T2 - IEICE TRANSACTIONS on Communications
SP - 360
EP - 362
AU - Yi WANG
AU - Qianbin CHEN
AU - Xing Zhe HOU
AU - Hong TANG
AU - Zufan ZHANG
AU - Ken LONG
PY - 2013
DO - 10.1587/transcom.E96.B.360
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E96-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2013
AB - Orthogonal frequency division multiplexing (OFDM) is very sensitive to the frequency errors caused by phase noise and Doppler shift. These errors will disturb the orthogonality among subcarriers and cause intercarrier interference (ICI). A simple method to combat ICI is proposed in this letter. The main idea is to map each data symbol onto a couple of subcarriers rather to a single subcarrier. Different from the conventional adjacent coupling and symmetric coupling methods, the frequency diversity can be utilized more efficiently by the proposed adaptive coupling method based on optimal subcarrier spacing. Numerical results show that our proposed method provides a robust signal-to-noise ratio (SNR) improvement over the conventional coupling methods.
ER -