Coordinated scheduling and precoding in multicell MIMO system

Author

Xia, Xin ; Wu, Gang ; Fang, Shu ; Tian, Yuan ; Li, Shaoqian

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

1

fYear

2010

fDate

1-2 Aug. 2010

Firstpage

387

Lastpage

389

Abstract

In this paper, we propose a joint user scheduling and precoding scheme in multicell MIMO system. In the proposed scheme, each user feeds back its preferable precoding vector index as well as a scalar to a BS, then the coordinated BSs share all users´ feedback and work as a virtual enhanced BS. BSs determine a first user with maximum expected channel gain, and then use its preferable precoding vector to generate a unitary matrix. The columns of the newly generated matrix are used as precoding vectors for the following selected users. Numerical results show the effectiveness of the proposed method.

Keywords

MIMO communication; matrix algebra; precoding; scheduling; vectors; joint user scheduling and precoding scheme; maximum expected channel gain; multicell MIMO system; precoding vector index; unitary matrix; user feedback sharing; virtual enhanced base stations; Heating; CoMP; MIMO; precoding; scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits,Communications and System (PACCS), 2010 Second Pacific-Asia Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-7969-6

Type

conf

DOI

10.1109/PACCS.2010.5626926

Filename

5626926