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IEICE TRANSACTIONS on Fundamentals

Multiuser MIMO Beamforming for Single Data Stream Transmission in Frequency-Selective Fading Channels

Huy Hoang PHAM, Tetsuki TANIGUCHI, Yoshio KARASAWA

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Summary :

In this paper, we propose a multiple-input multiple-output (MIMO) beamforming scheme for a multiuser system in frequency-selective fading channels. The maximum signal-to-noise and interference ratio (MSINR) is adopted as a criterion to determine the transmit and receive weight vectors. In order to maximize the output SINR over all users, two algorithms for base station are considered: the first algorithm is based on the receive weight vector optimization and the second algorithm is based on an iterative update of both transmit and receive weight vectors. Based on the result of single user MIMO beamforming, we analyze the interference channels cancellation ability of multiuser MIMO system. The first algorithm is a simple method and the second algorithm is a performative solution. Through computer simulations, it is shown that multiuser communication system is achievable using the proposed methods in frequency-selective fading condition.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.3 pp.651-659
Publication Date
2005/03/01
Publicized
Online ISSN
DOI
10.1093/ietfec/e88-a.3.651
Type of Manuscript
Special Section PAPER (Special Section on Adaptive Signal Processing and Its Applications)
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