Apparatus and method for beamforming in a multiantenna multiuser communication system
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Date
2012-05-29
Authors
Robert W. Heath, Jr.
Chan-Byoung Chae
Eun-Seok Ko
Jong-Hyung Kwun
David Jean-Marie Mazzarese
Journal Title
Journal ISSN
Volume Title
Publisher
United States Patent and Trademark Office
Abstract
A method for beamforming by a transmission device in a multiantenna multiuser communication system. The method includes grouping codebook indexes included in a codebook into codebook index combinations, and calculating a sum of transmission rate for each of the codebook index combinations; selecting a codebook index combination with a maximum sum of transmission rate as an optimal codebook index combination; and transmitting a codebook index corresponding to a particular reception device among codebook indexes included in the optimal codebook index combination, to the particular reception device.