Channel aware scheduling in MIMO based WLANs in the presence of channel uncertainty

Author

Mirkovic, Jelena ; Walke, Bernhard ; Garcia, Jordi Gomez

Author_Institution

ComNets, RWTH Aachen Univ., Aachen, Germany

fYear

2008

fDate

21-24 Oct. 2008

Firstpage

406

Lastpage

410

Abstract

In this paper system level performance evaluation of channel aware schedulers that apply previously presented multiple input-multiple output (MIMO) link adaptation algorithms is given. The analyzed schedulers operate in single-user (SU) and in multi-user (MU) mode, and adapt either only modulation and coding scheme, or MIMO scheme in addition. The performance evaluation is done by comparative analysis of saturation throughput achievable by different schedulers, investigating the impact of MU diversity and channel uncertainty.

Keywords

MIMO communication; diversity reception; encoding; modulation; multiuser channels; scheduling; wireless LAN; wireless channels; MIMO based WLAN; channel aware scheduling; channel uncertainty; coding scheme; modulation scheme; multiple input-multiple output; multiuser diversity; multiuser mode; single-user mode; MIMO; Modulation coding; Physical layer; Quality of service; Receiving antennas; Scheduling algorithm; Signal processing algorithms; Space technology; Throughput; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems. 2008. ISWCS '08. IEEE International Symposium on

Conference_Location

Reykjavik

Print_ISBN

978-1-4244-2488-7

Electronic_ISBN

978-1-4244-2489-4

Type

conf

DOI

10.1109/ISWCS.2008.4726087

Filename

4726087