IEICE TRANSACTIONS on Communications
Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems
Summary :
In this paper, we propose a novel multiuser detection (MUD) method that is robust against timing offset between wireless terminals (WTs) for the multiuser multiple-input multiple-output (MU-MIMO) orthogonal frequency division multiplexing (OFDM) uplink. In the proposed method, MUD is carried out in the frequency-domain using overlapping fast Fourier transform (FFT) windows. After the inverse FFT (IFFT) operation, the samples obtained at both ends of each FFT window are discarded to suppress the effect of inter-block interference (IBI). Thus, it realizes an MUD regardless of the arrival timing differences of the signals from the WTs. The achievable bit error rate (BER) performance of the proposed MUD method is evaluated by computer simulations in a frequency selective fading channel.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.5 pp.1582-1588
- Publication Date
- 2009/05/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E92.B.1582
- Type of Manuscript
- Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
- Category
Authors
Keyword
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Koichi ISHIHARA, Yasushi TAKATORI, Kentaro NISHIMORI, Kazuyasu OKADA, "Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 5, pp. 1582-1588, May 2009, doi: 10.1587/transcom.E92.B.1582.
Abstract: In this paper, we propose a novel multiuser detection (MUD) method that is robust against timing offset between wireless terminals (WTs) for the multiuser multiple-input multiple-output (MU-MIMO) orthogonal frequency division multiplexing (OFDM) uplink. In the proposed method, MUD is carried out in the frequency-domain using overlapping fast Fourier transform (FFT) windows. After the inverse FFT (IFFT) operation, the samples obtained at both ends of each FFT window are discarded to suppress the effect of inter-block interference (IBI). Thus, it realizes an MUD regardless of the arrival timing differences of the signals from the WTs. The achievable bit error rate (BER) performance of the proposed MUD method is evaluated by computer simulations in a frequency selective fading channel.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1582/_p
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@ARTICLE{e92-b_5_1582,
author={Koichi ISHIHARA, Yasushi TAKATORI, Kentaro NISHIMORI, Kazuyasu OKADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems},
year={2009},
volume={E92-B},
number={5},
pages={1582-1588},
abstract={In this paper, we propose a novel multiuser detection (MUD) method that is robust against timing offset between wireless terminals (WTs) for the multiuser multiple-input multiple-output (MU-MIMO) orthogonal frequency division multiplexing (OFDM) uplink. In the proposed method, MUD is carried out in the frequency-domain using overlapping fast Fourier transform (FFT) windows. After the inverse FFT (IFFT) operation, the samples obtained at both ends of each FFT window are discarded to suppress the effect of inter-block interference (IBI). Thus, it realizes an MUD regardless of the arrival timing differences of the signals from the WTs. The achievable bit error rate (BER) performance of the proposed MUD method is evaluated by computer simulations in a frequency selective fading channel.},
keywords={},
doi={10.1587/transcom.E92.B.1582},
ISSN={1745-1345},
month={May},}
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TY - JOUR
TI - Overlap Frequency-Domain Multiuser Detection for Asynchronous Uplink Multiuser MIMO-OFDM Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1582
EP - 1588
AU - Koichi ISHIHARA
AU - Yasushi TAKATORI
AU - Kentaro NISHIMORI
AU - Kazuyasu OKADA
PY - 2009
DO - 10.1587/transcom.E92.B.1582
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2009
AB - In this paper, we propose a novel multiuser detection (MUD) method that is robust against timing offset between wireless terminals (WTs) for the multiuser multiple-input multiple-output (MU-MIMO) orthogonal frequency division multiplexing (OFDM) uplink. In the proposed method, MUD is carried out in the frequency-domain using overlapping fast Fourier transform (FFT) windows. After the inverse FFT (IFFT) operation, the samples obtained at both ends of each FFT window are discarded to suppress the effect of inter-block interference (IBI). Thus, it realizes an MUD regardless of the arrival timing differences of the signals from the WTs. The achievable bit error rate (BER) performance of the proposed MUD method is evaluated by computer simulations in a frequency selective fading channel.
ER -
English
