Coordinated user scheduling in the multi-cell MIMO downlink
Paper i proceeding, 2011

We propose a novel, coordinated user scheduling (CUS) algorithm for inter-cell interference (ICI) mitigation in the downlink of a multi-cell multi-user MIMO system. In the proposed algorithm, ICI mitigation is performed through the exchange of necessary channel state information (CSI) among the base stations, and the revision of the scheduling decisions and beamformer designs at each base station. Furthermore, ICI mitigation is performed only for the cell-edge users so that the amount of inter-base station signaling overhead is minimized. Our simulation results demonstrate that the proposed coordination scheduling algorithm significantly improves the cell-edge users' throughput compared to conventional systems with only a negligible amount of CSI sharing among the base stations and a relatively small throughput loss for the cell-interior users.

coordinated scheduling

inter-cell interference

Multi-user MIMO

Författare

Nima Seifi

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Michail Matthaiou

Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Mats Viberg

Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

15206149 (ISSN)

2840 - 2843 5947076

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/ICASSP.2011.5947076

ISBN

978-1-4577-0537-3