A multi-user beamforming scheme in MIMO downlink channels for multi-cell networks

Author

Lee, Jai-Hoon ; Kim, Seokkwon ; Jin, Seung-Ri ; Park, Dong-Jo

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea

fYear

2011

fDate

9-12 Jan. 2011

Firstpage

587

Lastpage

588

Abstract

In this paper, a multi-user beamforming scheme is presented in multi-user multi-input multi-output (MIMO) downlink channels with other cell interference (OCI). The proposed scheme consists of maximizing signal-to-leakage-and-noise ratio (SLNR) and whitening the OCI for power allocation. The conventional scheme which eliminates perfectly intra-cell interference has several problems such as antenna constraints and noise enhancement. The proposed scheme has resolved these problems and could obtain an additional channel gain by the number of antennas. We confirm the increasing of the performance via numerical results.

Keywords

MIMO communication; array signal processing; fading channels; interference suppression; receiving antennas; transmitting antennas; MIMO downlink channels; channel gain; intracell interference; multicell network; multiinput multioutput downlink channel; multiuser beamforming scheme; power allocation; signal-to-leakage-and-noise ratio; Antennas; Bismuth; Covariance matrix; Downlink; Interference; MIMO; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ICCE), 2011 IEEE International Conference on

Conference_Location

Las Vegas, NV

ISSN

2158-3994

Print_ISBN

978-1-4244-8711-0

Type

conf

DOI

10.1109/ICCE.2011.5722753

Filename

5722753