Adaptive Subcarrier Allocation for MIMO-OFDMA Wireless Systems Based on Beamforming
Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output（MIMO）systems.In this paper,the problem of allocating subcarriers in MIMO-OFDMA wireless systems was analyzed,and a scheme to allocate subcarriers among all users based on b...
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| Published in | Dong Hua da xue xue bao. Zi ran ke xue ban. Vol. 27; no. 3; pp. 425 - 429 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Department of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200240,China
2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1672-5220 |
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| Abstract | Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output（MIMO）systems.In this paper,the problem of allocating subcarriers in MIMO-OFDMA wireless systems was analyzed,and a scheme to allocate subcarriers among all users based on beamforming was proposed to maximize the signal-to-noise ratio（SNR）at the receiver.Statistical properties of the channel matrix were studied,and some beneficial results were got.Statistical channel state information（CSI）was also taken into account to simulate more practical systems.Simulation results show that the proposed allocating scheme is effective,and it is robust to the influence of delayed CSI. |
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| AbstractList | Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output（MIMO）systems.In this paper,the problem of allocating subcarriers in MIMO-OFDMA wireless systems was analyzed,and a scheme to allocate subcarriers among all users based on beamforming was proposed to maximize the signal-to-noise ratio（SNR）at the receiver.Statistical properties of the channel matrix were studied,and some beneficial results were got.Statistical channel state information（CSI）was also taken into account to simulate more practical systems.Simulation results show that the proposed allocating scheme is effective,and it is robust to the influence of delayed CSI. TN929.5; Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output(MIMO)systems.In this paper,the problem of allocating subcarriers in MIMO-OFDMA wireless systems was analyzed,and a scheme to allocate subcarriers among all users based on beamforming was proposed to maximize the signal-to-noise ratio(SNR)at the receiver.Statistical properties of the channel matrix were studied,and some beneficial results were got.Statistical channel state information(CSI)was also taken into account to simulate more practical systems.Simulation results show that the proposed allocating scheme is effective,and it is robust to the influence of delayed CSI. |
| Author | 管张均 张唯炯 周希朗 郭强 |
| AuthorAffiliation | Deparment of Electronic Engineering, Shanghai Jiaotong University Shanghai 200240, China |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Keywords | beamforming MIMO-OFFMA subcarrier allocation |
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| Notes | 31-1920/N beamforming subcarrier allocation TN929.5 MIMO-OFDMA;subcarrier allocation;beamforming MIMO-OFDMA |
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| Snippet | Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output（MIMO）systems.In this paper,the... TN929.5; Beamforming is a kind of signal processing technique which can improve system performance in the multiple-input multiple-output(MIMO)systems.In this... |
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| Title | Adaptive Subcarrier Allocation for MIMO-OFDMA Wireless Systems Based on Beamforming |
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