A Novel User Scheduling Strategy for Multiuser MIMO Systems with Random Unitary Beamforming

Author

Lu, Peng ; Yang, Hong-Chuan

Author_Institution

Dept of Elec. & Comp. Engr., Univ. of Victoria, Victoria, BC

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

1

Lastpage

5

Abstract

A new user scheduling strategy is proposed for multiuser MIMO system with random unitary beamforming (RUB) in this paper. This strategy imposes a threshold on the signal to interference and noise ratio (SINR) of mobile users to reduce the feedback load. The basestation only uses those beams that are requested by feedback users. The exact analytical expression of the sum rate of proposed strategy is developed, based on which the threshold is optimized to maximize the sum rate. With optimal thresholds, we demonstrate through numerical examples that the proposed strategy achieve a better sum-rate performance than existing scheduling strategies over high SNR region.

Keywords

MIMO communication; interference (signal); scheduling; multiuser MIMO systems; random unitary beamforming; signal to interference and noise ratio; user scheduling strategy; Array signal processing; Broadcasting; Feedback; Feeds; Interference; MIMO; Noise reduction; Receiving antennas; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th

Conference_Location

Calgary, BC

ISSN

1090-3038

Print_ISBN

978-1-4244-1721-6

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2008.117

Filename

4656949