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http://dx.doi.org/10.5573/ieek.2013.50.3.003

Iterative Weighted MMSE Beamforming for Downlink multiuser MISO System  

Choi, Ilgyu (Department of Electrical and Electronic Engineering, Yonsei University)
Hwang, Youngsoo (Departmnet of Electronic and Communication Engineering, Kwandong University)
Lee, Chungyong (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.3, 2013 , pp. 3-8 More about this Journal
Abstract
Conventional MMSE beamforming scheme shows better performance than ZF or MF beamforming, but it does not aim increase of sum rate. This paper proposes sum rate maximizing scheme by representing sum rate as a function of weighted MSE. Proposed scheme increases sum rate iteratively by updating weights and beam whose initial form is conventional MMSE beam. Simulation result shows sum rate of proposed scheme is higher than those of conventional schemes and increases as the number of users increases.
Keywords
하향링크;다중사용자;다중안테나;최소평균자승오류;빔형성;
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