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...

Full description

Saved in:
Bibliographic Details
Published inDong Hua da xue xue bao. Zi ran ke xue ban. Vol. 27; no. 3; pp. 425 - 429
Main Author 管张均 张唯炯 周希朗 郭强
Format Journal Article
LanguageEnglish
Published Department of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200240,China 2010
Subjects
beamforming
MIMO-OFFMA
subcarrier allocation
Online AccessGet full text
ISSN1672-5220

Cover

More Information
Summary: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.
Bibliography:31-1920/N
beamforming
subcarrier allocation
TN929.5
MIMO-OFDMA;subcarrier allocation;beamforming
MIMO-OFDMA
ISSN:1672-5220