Rate-optimal multiuser scheduling with reduced feedback load and analysis of delay effects

Hassel, Vegard ;Alouini, Mohamed-Slim;Øien, Geir E;Gesbert, David

EUSIPCO 2005, 13th European Signal Processing Conference, September 4-8, 2005, Antalya, Turkey

In this paper we propose a multiuser scheduling algorithm that has the maximum average system spectral efficiency, but obtains a significant reduction in feedback load compared

to full feedback by using a feedback threshold. An expression for the threshold value that minimizes the feedback load is found. Novel closed-form expressions are also

found for the system spectral efficiency when using M-ary quadrature amplitude modulation. Finally, we analyze the impact of scheduling delay and outdated channel estimates.

Detail

Document

DOI

BIBTEX

Type:

Conférence

City:

Antalya

Date:

2005-09-04

Department:

Systèmes de Communication

Eurecom Ref:

1740

© EURASIP. Personal use of this material is permitted. The definitive version of this paper was published in EUSIPCO 2005, 13th European Signal Processing Conference, September 4-8, 2005, Antalya, Turkey and is available at : http://dx.doi.org/10.1155/WCN/2006/36424