Efficient Metrics for Scheduling in MIMO Broadcast Channels with Limited Feedback

Author

Kountouris, Marios ; de Francisco, R. ; Gesbert, David ; Slock, D.T.M. ; Salzer, T.

Author_Institution

France Telecom, Issy-les-Moulineaux, France

Volume

3

fYear

2007

fDate

15-20 April 2007

Abstract

We consider a downlink channel where a base station equipped with M transmit antennas communicates with K ≥ M single-antenna receivers and has partial channel knowledge obtained via a limited rate feedback channel. We propose scalar feedback metrics that provide an estimate of the received signal-to-noise plus interference ratio (SINR), which are combined with efficient user selection algorithms and zero-forcing beamforming. The asymptotic system sum rate for large K is analyzed and numerical results are provided, showing the performance of each metric in different scenarios.

Keywords

MIMO communication; antenna arrays; broadcast channels; telecommunication network management; wireless channels; MIMO broadcast channel scheduling; asymptotic system sum rate; downlink channel; efficient metrics; limited feedback; limited rate feedback channel; partial channel knowledge; received signal-to-noise plus interference ratio; scalar feedback metrics; single-antenna receivers; transmit antennas; user selection algorithms; zero-forcing beamforming; Antenna feeds; Base stations; Broadcasting; Downlink; Feedback; Interference; MIMO; Receiving antennas; Signal to noise ratio; Transmitting antennas; Broadcast Channel; Limited Feedback; MIMO systems; Multiuser Diversity; Scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on

Conference_Location

Honolulu, HI

ISSN

1520-6149

Print_ISBN

1-4244-0727-3

Type

conf

DOI

10.1109/ICASSP.2007.366484

Filename

4217658