Low complexity non-iterative coordinated beamforming in 2-user broadcast channels

Ki Hong Park; Young Chai Ko; Mohamed Slim Alouini

doi:10.1109/TCOMM.2010.083110.090013

Low complexity non-iterative coordinated beamforming in 2-user broadcast channels

Ki Hong Park, Young Chai Ko, Mohamed Slim Alouini

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We propose a new non-iterative coordinated beamforming scheme to obtain full multiplexing gain in 2-user MIMO systems. In order to find the beamforming and combining matrices, we solve a generalized eigenvector problem and describe how to find generalized eigenvectors according to the Gaussian broadcast channels. Selected simulation results show that the proposed method yields the same sum-rate performance as the iterative coordinated beamforming method, while maintaining lower complexity by non-iterative computation of the beamforming and combining matrices. We also show that the proposed method can easily exploit selective gain by choosing the best combination of generalized eigenvectors.

Original language	English
Article number	5567184
Pages (from-to)	2810-2815
Number of pages	6
Journal	IEEE Transactions on Communications
Volume	58
Issue number	10
DOIs	https://doi.org/10.1109/TCOMM.2010.083110.090013
Publication status	Published - 2010 Oct

Keywords

Coordinated beamforming
Gaussian broadcast channel
generalized eigenvector problem

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCOMM.2010.083110.090013

Cite this

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abstract = "We propose a new non-iterative coordinated beamforming scheme to obtain full multiplexing gain in 2-user MIMO systems. In order to find the beamforming and combining matrices, we solve a generalized eigenvector problem and describe how to find generalized eigenvectors according to the Gaussian broadcast channels. Selected simulation results show that the proposed method yields the same sum-rate performance as the iterative coordinated beamforming method, while maintaining lower complexity by non-iterative computation of the beamforming and combining matrices. We also show that the proposed method can easily exploit selective gain by choosing the best combination of generalized eigenvectors.",

keywords = "Coordinated beamforming, Gaussian broadcast channel, generalized eigenvector problem",

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Low complexity non-iterative coordinated beamforming in 2-user broadcast channels

Abstract

Keywords

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